iv CONTENTS. 
3, 4, 5. Method of preventing iron and steel from rusting—-To 
make sealing wax—On the solvent power of hard waters, 
6. On the limits of vaporization, - - . - - 
7. On the functions of vegetable life, . . - 
8, 9. Ainmonia in native oxide of iron Salieine. - - - 
10, 11. Malic acid—Manufacture of charcoa 
12, 13, 14. Potash obtained from felspar—Action ” the ‘pile on 
wing animal substances—Chlorine an antidote to peas 
15, 16. ‘Common salt a remedy or aceal poison—Tenacity a 
13 
life, - 
vegetable 
17, 18, 19. - Precaution in sbmnting potatoes Preservation of trees 
fro 15 
hares—Use of cotton in dressing woun 
NATURAL HISTORY. 
1. To blow eggs for preservation in cabinet - 
2, 3. Killing large insects—Impro ved ornithological terms, 
4, 5. ‘Touchwood—Habits of the crocodile, - - 
6. Are the songs of birds innate or recyuneast teak - 
MECHANICAL PHILOSOPHY. 
1, 2. Prevention of the cracking of HOR Giasses-—-On giving a 
fine edge to razors, lancets, 
3. Interesting optical experiments, - - - ° Ps 
4, 5. Hardness of jlead—Power of horses, - - 
6. Composition of size for illuminators, artists, hic: . - 
STATISTICS. 
1. Yorkshire Philosophical Society, - -- - - - 
On the fructification of the Mosses, - = - ee 
NOTICE OF JOURNALS, MEMOIRS, &c. 
1. Journal of the Philadelphia College. of Tbarmacy, - - 
2. Say’s American Conchology, - 
3y 44 Ake: Griscom’s address to the N pack Sachanics henariss 
(sie, 
5 6, 7, 8. Discourse on classical lareine— Adin at the mins 
ing of the Classical Hall at Brooklyn, and Discourse on 
Sg eae ear on at the opening a. ew edi 
ce r 
e New York Dispensary—Method of aequring a fall 
1 
. iades of the English lan 
9, 10. Southern Agricultoralist—Analyss| of the fuineral water 
of eee and Ballston, &c. 
11. Essays on some Ssieabtaik aiicles of the Materia Medica, 
= Franklin Fostitution of New Hav 
. Addresses of the Rev. Adam Sete wick, - 
ve 15, 16,17. American Botanical Register Encyclopedia Ame- 
—Gen. Cass’s ee before the Alumni of Mamnitens 
a 1 
