Huxley, Thomas Henry. <br/><br/>
A course of elementary instruction in pratical Biology /  
by Thomas Henry Huxley ; assisted by H.M. Martin , revised edition extended and edited by G.B. Howes and D.H. Scott. 
 - London :   Macmillan and Cº,   1907. 
 - XI, 512 p. ;   19 cm.