DISTRICT OF PENNSYLVANIA, to wit: 
Be it remembered, That on the second day of October, in the fortieth year of the Indepen- 
dence of the United States of America, A. D. 1815, William P. C. Barton, of the said district, hath 
deposited in this oflice, the title of a book, the right whereof he claims as author, in the words 
following to wit: 
“ Florae Philadelphicae Prodromus; Plantarum quae hactenus exploratae fuere, quaeque in ipso opere ulterius 
“ describentur, exhibens enumerationem: or, Prodromus of the Flora Philadelphica; exhibiting a list of all the 
“ plants to be described in that work, which have as yet been collected. Simul et jucunda et idonea dicere vitae. 
“ Horace. By William P. C. Barton, M. D. Fellow of the College of Physicians of Philadelphia; member of the 
“ American PJiilosophical Society, &c. 
In conformity to the Act of the Congress of the United States, intituled “ An Act for the encouragement of 
learning, by securing the copies of maps, charts, and books, to the authors and proprietors of such copies during 
the times therein mentioned.” And also to the Act, entitled “ An Act supplementary to an Act, entitled, “ An Act 
for the encouragement of learning, by securing the copies of maps, chai'ts, and books, to the authors and proprietors 
of such copies during the times therein mentioned,” and extending the benefits thereof to the arts of designing, en- 
graving, and etching historical and other prints.” 
J. CALDWELL, Clerk of the District of Pennsylvania, 
Printed for the Author, and to be had only of him No. 22 2, Waln ut- street, and at the Penn- 
sylvania Hospital. 
