CONTENTS. 
Art. XII Memoir on the Xanthium maculatum, by the 
ie Se eee 1 
: ZOOLOGY. 
ae XIII. Description of the Phalena Devastator—the 
Insect that produces the Cut-worm, Be Mr. 
: John P. Brace . . 154 
Art. XIV. Description of the iosiodune anew es vet 
Fresh-water Fish, by C. S, Rafinesque, Esq. . 155 
PHYSICS, MECHANICS, AND CHEMISTRY. 
Art. XV. On the Revolving Steam-Engine of Mr. Sa- 
muel Morey, communicated by John L. Sulli- 
van, Esq. 157. 
Art. XVI. Cautions “sesarding Folovinatink Poedens” . 168 
USEFUL ARTS. 
Art. XVII. Account of a Parisian method of obtaining 
Gelatine from bones, by Mr. Isaac Doolittle 170 
Art. XVHE- On ihe use of Distilled Sea- water for domes- 
tic purposes—from the Annales de Chimie, &c. 17 
FINE ARTS. 
Art. XIX. Essay on Musical a doa by Profes- 
sor Fisher 176 
Art. XX. Notice of Col. Trumbull’s Picture of the De- 
claration of Independence . . - - 200 
INTELLIGENCE, 
Art. XXI. An Address to the People of the Western 
Country . . 208 
Art. XXII. Extract of a letter tis Col. (hha. on ‘the 
effect of light on the Magnetical power . . - 
Art. XXIfi. Un a new Lamp, without flame—from the, ’ 
Annals of Philosophy . . . , . ibid. 
