Bulletin of the Museum of Comparative Zoology 

 AT HARVARD COLLEGE. 

 I) , I , - Vol. XXVII. No. 3. 



ikL.lJ. /?y^ 



REPORTS OX THE DREDGING OPERATIONS OFF THE ^S'EST COAST OF 

 CENTRAL AMERICA TO THE GALAPAGOS, TO THE WEST COAST 

 OF MEXICO, AND IN THE GULF OF CALIFORNIA, IN CHARGE OF 

 ALEXANDER AGASSIZ, CARRIED ON BY THE U. S. FISH COMMIS- 

 SION STEAMER "ALBATROSS/' DURING 1891, LIEUT. COMMANDER 

 Z. L. TANNER, U. S. N., COMMANDING. 



XVII. 



BIRDS FROM COCOS AND MALPELO ISLANDS, WITH NOTES OX 

 PETRELS OBTAINED AT SEA. 



By C. H. Townsexd. 



[Published by Pernii.ssion of Marshall McDonald, U. S. Fish Commissioner.] 



With Two Colored Plates. 



CAMBRIDGE, MASS., U. S. A. : 



PRINTED FOR THE MUSEUM. 



July, 1805. 



