INTRODUCTION. 
VI1 
J. Ritchie, Esq., from Tunis. 
Rev! T\Rj Lowe and 0. Blewitt, Esq., from Madeira. 
J. Burton, Jun., Esq., and Sir John G. Wilkinson, from the 
Red Sea. 
Lady Frances Cole, from the Mauritius. 
M. Matthieu, from the Isle of France. 
Purchased of 
Mr. Fraser, from the Coast of Barbarv and W. Africa. 
Dr. Janvier, from the Mauritius. 
North American species, presented by 
Colonel Edward Sabine, from Baffin’s Bay. 
Thomas Say, Esq., from the United States, being the types 
of the species he described. 
Edward Doubleday and B. Wins tone, Esqrs., and Dr. Wag¬ 
ner, from the United States. 
W. C. St. John, Esq., from Newfoundland. 
Dr. Philip Maclagan, from Canada. 
Rev. Lansdowne Guilding and E. Redman, Esq., from the 
West Indies. 
Lady Katherine Douglas and Sir George Simpson, from the 
West Coast. 
Purchased of 
Mr. Scrivener and Mr. Gosse, from the West Indies. 
The South iVmerican species, presented by 
Lord Stuart de Rothesay, W. Swainson, Esq., J. P . George 
Smith, Esq., and Mrs. Smith, from the Coast of Brazils. 
Sir R. Schomburgk, from British Guiana. 
