THE MONTHLY 
MICROSCOPICAL JOURNAL: 
TEANS ACTIONS 
OF THE 
ROYAL MICROSCOPICAL SOCIETY, 
AND 
RECORD OF HISTOLOGICAL RESEARCH 
AT HOME AND ABROAD. 
EDITED BY 
HENRY LAWSON, M.D., M.R.C.R, F.R.M.S, 
Assistant PhyskioM to^ and Lecturer on Physiology in^ St, Mary's Hospital, 
VOLUME XIV, 
LONDON: 
ROBERT HARDWICKE, 192, PICCADILLY, W. 
MDOCCLXXV. 
