QUARTERLY JOURNAL 
OF 
MICROSCOPICAL SCIENCE: 
EDITED BY 
EDWIN LANKESTER, M.D, F.R.S., F.LS., 
AND 
GEORGE BUSK, F.R.C.S.E., F.R.S., Sec. LS. 
VOLUME IV.—New Szrtes. 
GWith Allustrations on Wood and Stone. 
LONDON: 
JOHN CHURCHILL AND SONS, NEW BURLINGTON STREET 
"864, 
