LETTER XXIII. 



To the same, 



SKI.BORNE, Feb. rtth, 1769. 



EAR SIR, It is not improbable that the 

 Guernsey lizard and our green lizards may 

 be specifically the same ; all that I know is, 

 that, when some years ago many Guernsey 

 lizards were turned loose in Pembroke 

 College garden, in the University of Oxford, 

 they lived a great while, and seemed to 

 enjoy themselves very well, but never bred. Whether this 

 circumstance will prove anything either way I shall not pre- 

 tend to say. 



I return you thanks for your account of Cressi Hall ; but 

 recollect, not without regret, that in June 1746 I was visiting 



