"Persons wishing to attend this course will please call at the lecturer's home at any time before next Tuesday in order to enter the names on the list.

"Ladies are informed that the list of subscribers to their course will not be closed until next Monday at twelve o'clock at the hour the next lecture, properly the first of the regular series, will be delivered. Gentlemen are not admitted to these lectures."

In 1810 Dr. Rogers gave out a Syllabus of 12 octavo pages "On Experimental Lectures on Natural Philosophy and Chemistry," in which great emphasis was laid on the practical application of these sciences. It also stated that "it is even esteemed, in some measure, a cause of shame, for persons of respectable education, to be ignorant of their general principles." In one newspaper announcement Rogers said that in order to get sufficient s.p.a.ce for his audience he had procured the "use of the elegant and s.p.a.cious ball room of M.

Guillou." In this special work he was repeating the labors of Sir Humphrey Davy in London. In reality, Rogers and his contemporaries and coadjutors were pioneer University Extension Lecturers. They sought to popularize the natural and physical sciences and also broaden the vision or outlook of their hearers. In the case of Cutbush there was a strong desire to utilize chemistry in manufacture. This he emphasized more strongly than any other lecturer.

Another partic.i.p.ant in the science propaganda was Dr. Thomas P. Jones, who devoted himself to Chemistry. The following notice of his lecture course is not devoid of interest:

"On Sat.u.r.day, the 13th inst., at seven o'clock in the evening, at Dr. Jones' Chemical Lecture Room, S.W. Corner of Fourth and Chestnut Streets, a lecture will be delivered on the properties of nitrous oxide, or the exhilarating gas, accompanied with a number of experiments. A large quant.i.ty will be prepared to exhibit its effects when inhaled.

"Tickets at fifty cents each may be had at A. Finley's Bookstore, S.E. Cor. of Chestnut and Fourth Streets, or at the lecture room on the stated evening."

On perusing early chemical texts and advertis.e.m.e.nts, such as those just given, attention is pointedly called to nitrous oxide, especially to its exhilarating properties, for then it was "_laughing gas_!" One Philip H. Nicklin published a brochure ent.i.tled

"THE ONLY GENTEEL WAY OF GETTING DRUNK

"A character representation of the effects produced by inhaling nitrous oxide gas. The accuracy of which no man breathing can deny. Price 25 cts."

To-day, nitrous oxide means a benign anaesthetic, so helpful and merciful when one is brought under the knife of the skillful surgeon.

The honor accorded Cutbush by his election to the Presidency of the Columbian Chemical Society was merited. He was not only an active, intelligent chemist, devoted to the advancement of his science in all directions, but he seems to have been an ardent enthusiast in the cause of education, for on the 7th of November, 1811, he delivered an Oration on Education before the Society for the Promotion of a Rational System of Education. His audience was large and consisted of the very best people of the city. The printed oration shows that in addition to his chemical knowledge he was versed in the humanities, in mathematics, in philosophy and ancient history. To-day the intelligent reader would p.r.o.nounce the oration scholarly in every particular. His chief purpose seems to have been to introduce into what was then the customary curriculum in schools a definite amount of science--natural and physical. This is marked in the t.i.tle of the organization before which he appeared on the occasion referred to, in Old St. John's Church. The whole community was interested in education. A society of educators had existed for a number of years. Neef had for a long time been advocating a system which was in reality a modification of the Pestallozian System, and men in every walk of life were seriously considering the innovations and advancements in this all-important subject.

Little can be found in regard to the Society for the Promotion of a Rational System of Education, but it may be inferred that the society had branches throughout the city and perhaps far beyond, because elsewhere Cutbush spoke of the society as under the Presidency of John Goodman, Esq., and that its purpose was to bring about a reformation in education. Further, Goodman was a prominent layman in the Church of Old St. John, who with his a.s.sociates, Messrs. Greiner and Braeutigam, fellow churchmen, deeply impressed with the new thought, seem to have established a school "formed out of the Lutheran congregation of the Church of St. John ... inst.i.tuted several professorships ... one of which, that of Chemistry, Mineralogy and Natural Philosophy" was conferred upon Cutbush, who proceeded to deliver courses on these subjects.

Desirous of learning something in regard to St. John's College, the authorities of St. John's Lutheran Church were consulted. It must be remembered that this is the oldest English-speaking Lutheran Church in America. It was founded by General Peter Gabriel Muhlenberg, and a unique distinction of this church is that in a period of 113 years it has had but three pastors. Nothing in the minutes of the church showed that a movement toward the establishment of a college had ever been made. Moreover, search in the archives of the State Department failed to bring to light the granting of a charter for an inst.i.tution bearing the name of St. John's College, although in an old directory of Philadelphia, reference is made to St. John's College, and to the fact that Cutbush was Professor of Chemistry, Mineralogy and Natural Philosophy in it. The same source of information declared that "the lectures were held back of St. John's Church in Race Street." It may be questioned whether Messrs. Goodman, Greiner and Braeutigam, who were the leaders of the congregation in the early years of 1800, and enthusiasts in regard to the reformation in education, did not, perhaps, carry out their thought without consulting the rest of their church a.s.sociates. In the history of the church there is a singular reference to the purchase of houses and lots which were known as "the fourteen chimneys" and the statement is made that the object of the purchase is not given. These "fourteen chimneys" may have been the buildings back of St. John's Church on Race Street.

Benjamin Smith Barton was another professor in St. John's College, who devoted himself to Natural History and Botany. Mr. Greiner, who was a.s.sociated with Messrs. Goodman and Braeutigam also taught in the inst.i.tution, and the head of the college or school was a Mr. Bachman, who later became a Lutheran clergyman and naturalist of high repute in South Carolina.

It is interesting at this far-away day to note the purposes of the Society for the promotion of education as set forth in its const.i.tution. Among other things, it is said "the education of youth in useful knowledge ought to be a primary object with parents and friends, that more especially ought every endeavour to be made in a religious community to lay a sure and solid foundation for every moral and social virtue. Impressed with a conviction of this important truth, a number of the members of St. John's congregation, willing to give every aid within their power toward the establishment and support of a Rational System of Education, have formed themselves into a Society for that purpose."

The copy of Oration on Education, printed by Cutbush, which it was the privilege of the writer to peruse, was the copy handed by Cutbush "To Dr. Seybert with the compliments of the author." In spite of age, these words are very clear and legible, and if the only relic by which to judge of the character of Cutbush, would indicate him to be a man of intelligence.

There were many other societies extant at this period and through subsequent years which had for their object the promotion of scientific education. Among these was the Linnean Society, of which James Cutbush was Vice-President.

Cutbush had the honor of being one of the few of the original Society of Philadelphia for the Promotion of National Industry, whose essays excited the attention of the citizens of the United States. Samuel Jackson, M.D., Professor in the College of Apothecaries, was one of the most active members.

Amidst all the activities of Cutbush as a manufacturing chemist, as a teacher of the science, as a promoter of educational reforms, as a member of many organizations, he was very busy in a literary direction. For example, in 1812 he published a brochure on Hydrostatics, in which were described various hydrometers and their application. Numerous tables appear in it as well as many interesting and serviceable problems. It was designed for and was helpful to artisans and to beginners in the science of physics and chemistry. It is appropriately dedicated to the Columbian Chemical Society.

In the year 1813, Cutbush placed before the public his "Philosophy of Experimental Chemistry" in two volumes. It was dedicated to the "Professors and Students of the University of Pennsylvania and to the Trustees of St. John's College." One cannot fail to wonder why Cutbush should have so honoured the University when there is no record anywhere that he ever pursued studies under the aegis of the University. Indeed, it will probably remain a query as to where he was educated. He is often spoken of as "Doctor Cutbush" and in at least two instances the t.i.tle "M.D." is placed after his name, yet it is a fact that in no place where he personally was responsible for the printing of his name is there any t.i.tle affixed to it. Every source of information from which it was hoped to ascertain where Cutbush might have obtained the Doctorate in the first decade of the 19th Century failed to produce the fact. Libraries were searched and volumes that ordinarily convey such information were studied without positive result.

The little contribution on the "Philosophy of Chemistry" was favorably known, for Silliman, in his reference to Gorham's Chemistry as the first book upon this subject by a native American, credits Cutbush with having written a similar work, but speaks of the effort of Cutbush as more elementary and not as exhaustive as that of Gorham.

The introduction in the first volume of Cutbush's work will always be interesting to American students of the science. For example, this quotation:

"Several original works have, accordingly, appeared, and some editions of European treatises have been published with revisions, corrections and additions by our countrymen. The Chemical and Economical Essays of Pennington, the edition of Chaptal enlarged by the late James Woodhouse ... that of Henry's Chemistry by Professor Silliman of Yale College, with some others, evince not only the learning and talents of our countrymen, but a growing taste for the encouragement of learning and the acquisition of chemical knowledge. Besides these, in the Transactions of our Societies and in the journals, or periodical works, several valuable papers have appeared. The genius of the medical students of the University of Pennsylvania, in particular, has been shown in a number of excellent inaugural dissertations, some of which have added to the improvement of chemical science.

"The first teacher of chemistry was Dr. Benjamin Rush ... who may justly be styled the father of chemistry in America. He commenced a course of lectures on this science in the then College of Philadelphia; and although chemistry at that day (1768) may be said to have been in its infancy, yet the Doctor did honour to the chair, the school, and his country.

We now speak of him only as a chemist.... The advancement of chemistry in our city ... is also indebted to other inst.i.tutions. The American Philosophical Society, the College of Physicians, inst.i.tuted in 1787, the Medical Society, formed in 1771; the Chemical Society under the patronage of Doctors Woodhouse and Seybert, which has since been dissolved; the Linnean Society, inst.i.tuted under the presidency of the learned Dr. Benjamin Smith Barton; the Columbian Chemical Society, founded in 1811; the Academy of Natural Science--all show the zeal for useful knowledge and philosophical inquiry.... For the introduction of popular chemistry, the citizens of Philadelphia are also indebted to Doctors Rogers and Jones, and to Benjamin Tucker, who have taught Chemistry with much zeal and talents."

Many attractions are found in the Philosophy of Experimental Chemistry. The first discussion is that on Chemical Affinity. Two experiments are introduced. In the first it is stated

"If equal parts, by weight, of sulphur and mercury be introduced into a crucible, and in this situation exposed to a sufficient heat; a compound will be formed, called sulphuret of mercury."

In the second experiment the student is advised to

"Mix together sulphur and potash, and throw them into water; the sulphur will separate. If the same articles be put into a crucible and melted, and then thrown into water, the sulphur as well as the potash will be dissolved."

And next comes the

"_Rationale._ In the first experiment there is an instance of chemical action, as well as of single affinity, for the sulphur and mercury would remain separate if heat was not applied. In consequence of this agent, they unite into an uniform whole, totally inseparable by mechanical means, and possessing characters distinct from either of its const.i.tuent parts.

"In the second experiment, the union of sulphur with potash is effected by heat; for if a sulphuret was not formed, no solution of the sulphur would take place. Hence it is that chemical action is the consequence of a power, without which it could never ensue, and with which it always acts in unison. This power is affinity."

Then it is remarked:

"Chemistry is a science, which has for its object to discover the const.i.tuent properties of bodies, the result of the various combinations, and the laws by which those combinations are effected. Its operations being either a.n.a.lytical or synthetical, consist of composition, or decomposition. The laws which govern chemical changes have been resolved into those of attraction or affinity. Affinity of composition of chemical affinity differs from that of aggregation or cohesion or corpuscular attraction, by acting upon matter of a different kind; or by taking place between the ultimate const.i.tuent parts of bodies, producing by its action, substances possessing properties frequently very different, and sometimes contrary to those of the const.i.tuent parts."

Throughout the book the order of presentation is the experiment, rationale, and remarks. A study of the "Philosophy" shows clearly that Cutbush presented his material in a rather original fashion. His method is not observable in any of the text-books of that date.

In discussing potash, Cutbush wrote:

"It has been supposed ever since our countryman, Dr.

Woodhouse, made an experiment with potash that this alkali had an inflammable base. I am disposed to believe that the Doctor was the first one who hazarded this conjecture as to the inflammable nature of potash _when treated in certain ways_. The Doctor found that a mixture of pearl ash with soot, calcined by a very intense heat in a covered crucible, when cold caught fire on the affusion of water. The experiment was repeated with charcoal with the same result and the inflammation probably arose from the action of the base of the alkali on the water."

He says:

"That Thomas Cooper ... repeated this experiment, and succeeded, I think, after several attempts, in procuring the metal. Dr. John Redman c.o.xe and myself also performed it, but in our attempt we failed. The professor, however, persevered, and finally procured it.... My brother, Dr. Edward Cutbush, succeeded in procuring it by using the heat of a black-smith's forge. I have not heard of any other attempts in this country except by a gentleman in New York, who was also successful."

These statements substantiate the idea that Woodhouse isolated the metal pota.s.sium quite independently from any European chemist; it even looks as if he may have isolated it in the manner referred to before Sir Humphrey Davy had separated it with the aid of the electric current.

In the first volume of the Philosophy there is a frontispiece, a lamp furnace, consisting of a bra.s.s rod, fastened to a piece of metal, furnished with rings of different diameters, and thumb screws to raise or lower the lamp and rings when in use. By this furnace evaporation, digestion, solution, sublimation, distillation and other processes, which require a low temperature, may be performed.

And in the second volume there is a frontispiece representing a portable universal furnace, made of strong wrought iron plates and lined with bricks bedded in fire-proof loam. The height of the furnace is two feet. The body of the furnace is elliptical. There are three openings in front of the furnace, one above the other, furnished with sliding doors, and fitted with stoppers made of crucible ware.

Both pieces of apparatus represent a marked advancement. They were evidently exceedingly useful. By their means it was possible to execute excellent work.

It would repay one to examine with care the various American text-books on chemistry, beginning about 1770 and continuing down to 1830. There would arise a picture before one's mind of the successive steps in the development of chemical apparatus, and again, the knowledge derived from the presentation of chemical theory and data would be refreshing and inspirational. It is to be hoped that the time is not far distant when some library, public or university library, will go to the trouble of gathering the American texts on Chemistry for the period just alluded to. It is not likely that an alcove filled with this literature would be largely patronized, yet it would be possible for the enthusiast on the development of chemistry in this country to collect from such a source a great deal of valuable material which might be presented with profit to the rising generation of American chemists.

Cutbush had little leisure during the year 1813, as he was engaged with the duties of the College and was conducting popular lectures on an extended scale. It was necessary for him to invite his friend, Dr.

George F. Lehman, to a.s.sist in the various demonstrations. They emphasized not only the theory but the practice of chemistry with its application to the useful arts. Their experiments were numerous and were of such a character as to appeal to the general public. The course offered by Professor Cutbush and Dr. Lehman was remunerative.

It is said the cost of tickets for ladies was $5.00 and those for gentlemen $8.00.

In addition to the devotion of Cutbush to these didactic courses in chemistry, he spent much time in a literary way. One of the best-known publishers of the city announced the purpose of printing the _American Artist's Manual_ under the editorship of Cutbush. The advertis.e.m.e.nt stated--

"To manufacturers, however, who are presumed to be interested in practical knowledge the value of such works is greatly diminished by the multiplicity of theories, technical terms and complicated processes which they in general contain. It is, therefore, unnecessary to expatiate on the advantages to be derived from such a publication as is now proposed in the present work. While it is intended to embrace most of the Arts and Manufactures, particular attention will be paid to those of agriculture, brewing, bleaching, dyeing in its various branches, the manufacture of gla.s.s, pottery and all others which the situation of our country renders obviously of primary concern and importance."

This extensive and helpful publication appeared in 1814 in two octavo volumes of more than 600 pages each. The reader should note that

"The price to subscribers will be $7.00 in boards or $8.00 substantially bound, payable on delivery. Those who procure subscriptions of nine copies and become accountable for their payment shall be ent.i.tled to one copy for their trouble."