3§6 Roosevelt Wild Life Bulletin 



to learn by what system of forest and game management this bird 

 may be best encouraged. 



The interesting paper and very valuable series of photographs 

 of the Ruffed Grouse in this number of the Bulletin, by the well- 

 known bird artist and student, Air. Edmund J. Sawyer, will be 

 appreciated by many. This valuable contribution to the Roosevelt 

 Station has been made possible through the generosity of several 

 friends, including Mr. J. C. Brennan, Dr. Henry E. Bischoff of the 

 Erie County Society for the Protection of Birds, Fish and Game, 

 and Mr. YY. E. Hookway of Syracuse; and plate 29 has been con- 

 tributed by the author and artist himself. Attention is called to 

 the fact that the colored plates accompanying Mr. Saunders' paper, 

 as well as those in the following issue of the Bulletin (Vol. I, 

 No. 4) on the birds of the Adirondack forest, are the painstaking 

 work of Mr. Sawyer. 



NEW PROBLEMS IN FOREST RECREATION 



That mosquito control, by means of fishes, should be a practical 

 forestry problem will be a surprise to many who think of forests 

 only in terms of lumber and not as related to other points of human 

 contact. With the intensive use of forests that accompanies recrea- 

 tional utilization by large metropolitan crowds there arise new prob- 

 lems, far in advance of those in remote forests, that demand new 

 methods of attack. While a fish survey was being conducted by 

 the Roosevelt Station, with the view of learning how to properly 

 stock and manage the waters of the Palisades Interstate Park, it was 

 found that many campers were suffering from the bites of mos- 

 quitoes. A special examination of the breeding grounds showed that 

 the mosquito larvae or wigglers thrived when out of reach along 

 the shores among water vegetation or behind other barriers. It 

 was also found that when fish had access to these retreats the 

 wigglers did not abound in the water, but they were, found abun- 

 dantly in the stomachs of the fish. In this way and by other methods 

 it was determined that certain kinds of the fish were very valuable 

 in controlling the abundance of mosquitoes. 



The plans for this investigation were initiated by Mr. Edward F. 

 Brown, Superintendent of the Camp Department of the Palisades 

 Interstate Park, and were conducted by Dr. J. Percy Moore, of the 

 University of Pennsylvania, working in cooperation with the Com- 

 missioners of the Palisades Interstate Park, the U. S. Bureau of 

 Fisheries, and the Roosevelt Wild Life Station. The results of 

 this cooperative survey have been published by the U. S. Bureau 

 of Fisheries in " Use of Fishes for Control of Mosquitoes in 

 Northern Fresh Waters of the United States " (Report of the U. S. 

 Commissioner of Fisheries for 1922, Appendix IV. pp. 1—60, Doc. 

 No. 923, 1922). The cooperative character of this investigation 

 might easily be overlooked, and it should be definitely understood 

 that this was the direct outcome of the Station's cooperation with the 

 Park. The author remarks that " of all the experiments made dur- 

 ing the three seasons the most conclusive were those made in the 

 Palisades (Interstate) Park" (1. c, p. 9), 



