BIOLOGICAL SURVEY OF WOODS HOLE AND VICINITY. 25 



(2) Seasonal changes in the fauna and flora should be determined by observations 

 throughout the year. 



(3) A more definite system of classifying bottom deposits is desirable. (See p. 30-32.) 



(4) Temperature and density records should be taken throughout the entire region 

 for every month of the year. 



(5) The intertidal and the pelagic fauna and flora should receive the same detailed 

 attention as has been accorded to the bottom-dwelUng species. 



(6) The limits of the area dredged should be extended from the mouth of Buzzards 

 Bay and Vineyard Sound out to the 25-fathom line, and farther if practicable. Such 

 work as has already been done points to the possibility that the limits of distribution of 

 a considerable number of species would be successively encountered as the work was 

 extended outward. We should likewise predict in full confidence a greater and greater 

 predominance of such northern types as just enter Vineyard Sound and Buzzards Bay. 



We hope that such a program may be carried out in the future. Much of it could 

 only be accomplished, it is true, by the establishment of a permanent scientific staff at 

 the Bureau's Woods Hole Laboratory. Our hope, therefore, embraces this feature 

 likewise. 



The senior author of this report, as director of the Woods Hole Laboratory, has had 

 general supervision of the Biological Survey from its inception, including executive man- 

 agement, selection of assistants, correspondence with specialists, etc. Upon him, also, 

 has fallen the duty of compiling the results and of writing the entire report, excepting 

 that portion devoted to the marine alg;E. The latter has been prepared by Dr. Davis. 

 On the other hand, both Dr. Osburn and Dr. Cole have played an essential part in this 

 undertaking, and are fully entitled to rank as joint authors. 



During the summer of 1903, in which the Fish Hawk alone was used for the Survey 

 dredgings, the field work and subsequent disposition of the zoological material were in 

 direct charge of Dr. Sumner and Dr. Osburn. In 1904 the Fish Hawk dredging, after a 

 few preliminary trips, was in charge of Dr. Cole, who was likewise largely responsible for 

 the identification of the material collected by that vessel. During the latter season the 

 inshore dredging with the Phalarope was commenced, and this, almost from the outset, 

 was in charge of Dr. Osburn, who identified a large proportion of the specimens and drew 

 up the records for these trips. During the summer of 1905 practically the same arrange- 

 ments were continued, Dr. Osburn superintending the work of the Phalarope and Dr. 

 Cole that of the Fish Hawk. Thus the two last-named members of the staff have been 

 responsible for about four-fifths of the field work during the first three seasons of the Sur- 

 vey dredging, together with a proportional amount of the task of identifying the zoolog- 

 ical specimens, while perhaps one-fifth of this is to be credited to Dr. Sumner. This 

 estimate leaves out of consideration the services of the botanists of the staff. Dr. Davis 

 and Miss MacRae, who participated in the field work during the second and third sea- 

 sons of the sun.-ey. 



The supplementary dredging trips of later seasons were in charge of different mem- 

 bers of the laboratory staff, according to the nature of the material sought. During 

 the summers of 1907 and 1908 Messrs. D. W. Davis and C. B. Bennett were each detailed 

 for duty on the Fish Hawk for a considerable number of days, with instructions to search 

 for and preser\-e all material belonging to certain specified groups. The sorting and 



