THE MONTHLY 
MICROSCOPICAL JOURNAL: 
TRANSACTIONS 
OF THE 
ROYAL MICROSCOPICAL SOCIETY, 
AND 
RECORD OF HISTOLOGICAL RESEARCH 
AT HOME AND ABROAD. 
EDITED BY 
HENRY LAWSON, M._D., M.R.C.P., F.R.MS., 
Assistant Physician to, and Lecturer on Physiology in, St. Mary’s Hospital. 
VOLUME XVII. 
1B RAR 
gs 
we 
REW YORK 
BOTANICAL ~ 
Carpe’ 
LONDON: 
HARDWICKE ann BOGUE, 192, PICCADILLY, W. 
MDCCCLXXVII, 
