THE LIFE-HISTOEY 



OF 



BKITISH SERPENTS 



AND THEIR LOCAL DISTRIBUTION 

 IX THE BRITISH ISLES 



BY 



GEEALD R. LEIGHTON 



M.D. EDINBURGH UNIVERSITY : THESIS, 1901, ' THE REPTILIA 



OF THE MONNOW VALLEY* 



FELL. SOC. SCIENCE, LETTERS, AND ART, LONDON 



WILLIAM BLACKWOOD AND SONS 



EDINBURGH AND LONDON 



M C M I 



