TEXT-BOOK 



OF 



EMBRYOLOGY 



Continued 



VOL. III.— MAMMALIA 



By the late RICHARD ASSHETON, Sc.D., F.R.S. 



Completed by 

 Prof. J. P. HILL, F.R.S., 



AND 



Prof. J. T. WILSON, F.R.S. 



[/;/ Preparation. 



LECTURES ON 

 SEX AND HEREDITY 



DELIVERED IN GLASGOW, 1917-1918 



By Prof. F. O. BOWER, Sc.D.; Prof. GRAHAM KERR, M.A.; 

 AND Prof. W. E. AGAR, D.Sc. 



Illustrated. Crow 71 Zvo. ^s. ?iet. 



"Excellent little book. . , . No one who has a natural interest in 

 living things, but has had no systematic training in biology, can fail to find 

 these lectures interesting." — Nature. 



" In these lectures the leading facts relating to sex in animals and plants 

 are set out with a simplicity and breadth of view which should commend 

 them to a wide circle oi xQ2idex?,.^^—Joti}'ual of Edttcatioji. 



LONDON: MACMILLAN AND CO., Ltd. 



