THE MONTHLY 
^MICEOSCOPICAL JOUENAL 
TEANSACTIONS 
OF THE 
ROYAL MICROSCOPICAL SOCIETY 
AND 
RECORD OF HISTOLOOICAL RESEARCH 
AT HOME AND ABEOAD. 
EDITED BY 
HENRY LAWSON, M.D., F.R.M.S., 
Assi<9tant Physician to^ and Lecturer on Histology in^ St. Mary^s Hospital. 
VOLUME L 
LONDON: 
ROBERT HARDWICKE, 192, PICCADILLY, W. 
MDCCCLXIX. 
