PREFACE 
© lies object of the present work is to give a 
succinct account of what is known concerning 
the life of that branch of the animal kingdom to 
which the Snail, the Oyster, and the Cuttlefish 
belong—the MoLtusca. 
Especial attention has, therefore, been given to their 
history, relationships, and everyday life (ecology), 
with only general notes on their anatomy, classifica- 
tion and distribution, etc. 
The numerous illustrations it is hoped will prove 
helpful to students. Many figures have been specially 
drawn by Miss G. M. Woodward, but most of them 
first appeared in the late Dr. S. P. Woodward’s 
“ Manual of the Mollusca,” the original drawings and 
engravings for which are in the possession of the 
writer. Cordial thanks are due to the Trustees of 
the British Museum for their courteous permission 
Vv 
