THE 
JOURNAL 
OF SCIENCE, 
AND ANNALS OF 
ASTRONOMY, BIOLOGY, GEOLOGY, INDUSTRIAL ARTS, 
MANUFACTURES, AND TECHNOLOGY. 
(MONTHLY, FORMERLY “THE QUARTERLY JOURNAL OF SCIENCE.’) 
vol. ii. (ssy 
VOL. XVII. (O.S.) 
3, HORSE-SHOE COURT, LUDGATE HILL. 
>+ «! «» ■ 
MDCCCLXXX, 
