I cannot here omit to mention the names of Sir James Mac Grigor, and Dr. Burnet for their kindness in allowing me to examine the Museum of Fort Pitt Chatham and of Haslar Hospital, and to Dr. Horsfield for the facilities which he gave me of seeing the Reptiles in the Museum of the India House, and more especially of comparing and copying the drawings made under the superintendence of Dr. Hamil ton in India.