128 



REPORTS ON INVESTIGATIONS AND PROJECTS. 



and the second in July 1912. The shore-Hne as it was in 1905 is drawn in 

 full, while that of 1912 is dotted. Our buildings, which once occupied the 

 center of the island, are now quite close to the eastern shore. 



A list of the names of the investigators and of the places wherein they 

 studied is herewith presented: 



In response to certain inquiries, it may not be inappropriate to speak of 

 the general aims and mode of management of the Department of Marine 

 Biology. In common with other projects maintained by the Carnegie Insti- 

 tution of Washington, it is our purpose to endeavor to assist investigators 

 whose previous work has demonstrated their ability to succeed in research. 

 We hope to place before them the best facilities for the advancement of their 

 investigations, maintaining above all that freedom of thought and action so 

 essential to the spirit of research. Toward all other educational institutions 

 it is our duty to serve as an aid, supplementing but never rivaling their 

 efforts. Indeed, we may well avoid fields in which the harvest is being 

 reaped, for our place should be in domains hitherto inaccessible or neglected. 

 We must not duplicate but originate investigations. 



It is true that,, the field of research being so vast, we must neglect more 

 than we can ever hope even to attempt ; and this policy of definitely planned 

 investigations has led to an all too evident narrowness of scope in the work 

 the Department has performed, yet it is above all our aim to achieve 

 thoroughness in a few things rather than superficiality in many, believing 

 that science of to-day is being advanced by intensive studies rather than by 

 broad surveys. 



The following five researches have been published during the year as a 

 result of studies conducted at Tortugas, Florida : 



G. Harold Drew, Cambridge University, England. The action of some denitrifying 

 bacteria in tropical and temperate seas, and the bacterial precipitation of 

 calcium carbonate in the sea. Journal of the Marine Biological Association, 

 Plymouth, England, vol. 9, pp. 142-155, October 191 1. 



