THE 
JOURNAL OF SCIENCE, 
AND ANNALS OF 
ASTRONOMY, BIOLOGY, GEOLOGY, INDUSTRIAL ARTS, 
MANUFACTURES, AND TECHNOLOGY. 
(MONTHLY FORMERLY “THE QUARTERLY JOURNAL OF SCIENCE.”) 
VOL. VII. g-y 
VOL. XXII. (O.S.) 
LONDON : 
3, HORSE-SHOE COURT, LUDGATE HILL. 
- . . t M * . . 
MDCCCLXXXV. 
