bearing the date October, 1819. It read:

"_Bleaching Liquor_, _Artificial Musk_, _Phosphate of Mercury
and other chemical Preparations_, prepared and sold by

"JAMES CUTBUSH
"Chemist and Apothecary
"No. 25 South Fourth Street, Phila.

"where complete collections of chemical reagents are kept as
usual."

Here is a hint as to the occupation of Cutbush. He was a
chemist--presumably a manufacturing chemist, supplying the necessary
reagents to persons desiring them for their chemical studies; and
further he was a pharmacist serving the various requirements of the
medical men of the City.

Thorough search through newspaper files disclosed that from the year
1811 and perhaps two years earlier, and extending up to the year
1813--various announcements were made by Cutbush as to lectures of a
public nature. These help us realize the character of the individual
and his work. For example--

"Dr. Cutbush's course of _Evening Lectures on Chemistry_ will
commence early in the second week in November, at the
Laboratory in Videl's Court, in Second, near the Corner of
Chestnut St."

and several months later the following notice was found--

"_LECTURES_
on
_THEORETICAL AND PRACTICAL PHARMACY_

"The subscriber, at the solicitation of several medical
gentlemen, proposes to give a series of Lectures on the
Theory and Practice of Pharmacy, accompanied with the
necessary chemical elucidations.

"Tickets may be had at 25 South Fourth St.

"Price 20 dollars.

"JAMES CUTBUSH."

This was in the year 1812. Early in 1813, a year after the preceding
announcement, there appeared--

"J. Cutbush has the pleasure to announce to the ladies and
gentlemen composing his class that the lectures on Chemistry,
as well as those which are to follow on Mineralogy and
Natural Philosophy, will be given in St. John's Lyceum in a
building lately erected at the Corner of Chester and Race,
between Eighth and Ninth Sts.

"N.B. The next lecture will be delivered this evening
(Saturday) when, at the request of several ladies, the
nitrous oxide or the exhilarating gas will be exhibited."

These announcements exhibit a phase in the development of chemical
science which is worthy of pause and reflection. Science subjects had
taken hold of many persons in the early years of the Nineteenth
Century. Some of them became ardent enthusias