CHAPTER XXIX. 
X. HUMBER PROVINCE. 
61. SoutH-EAst York. 63. SoutH-west YORK. 
62. NortH-rast YorK. 64. Mrp-wesr York. 
65. NorrH-west York. 
Yorkshire. 
Scarporouan Districr.  “ Adders. —These are 
common wherever the localty is suitable for them, 
but they are gradually dying out from continuous 
persecution. The general length of the males is 18 
or 19 inches, that of the females 20 to 22 inches. 
The largest female that I have measured was 25} 
inches. Varieties are very scarce. I have seen 
hundreds, but not until this last summer (1900) 
have I seen any variation from the usual type. I 
eaueht (and afterwards set at liberty again) a male 
adder about 18 inches in length, of a bright brick- 
red ground colour, with very black markings of the 
ordinary pattern. It was on moorland. In those 
T have dissected IT have never found any. other 
