ysi 
ine Lens, a Sir D. eens TER: On 
n of the PORE a bye D 
Dynactinomete, by Mr. Crauper: 
vision of rapidly revolving coloring esr hy ‘Prof. Srevetry, 401.— 
f Nitro x to the nutritive Value of Food, 
CK a peculiar form produced in a Di aes when 
fluence of the Voltaic Are, by J. P. Gassior, 404.— on th 
Ww of the. Chemical Action of the Solar Ratlationn, 
ta on Water and Organic Matter, by Dr. R. 
Phos pphee? c Acid in some Natural Wan 
rescence of Potassium; by Mr. W. 
—The Phos 
f Fluorine in Dkeka nd Milk, by Dr. G. pelt 
Supposed Staurotide of Norwich, Mass. : 
“APPENDIX. 
Prof. Page’s ecto “magnetic Engine by P Professor Wt 
ENSON, 473.~ a 
0” ae 
ma Ca 
: age 
