August 30, 1919] 



SCIENCE 



205 



An appeal to him invariably brouglit fortli a 

 favorable response. 



Tbe committee will welcome tbe cooperation 

 of Americans. Contributions should be sent to 

 Mr. 0. E. Fagan, honorary treasurer, Godman 

 Memorial Fund, Natural History Museum, 

 Cromwell Road, London, S.W. 7. 



EXHIBIT OF MARINE CAMOUFLAGE 



The Brooklyn Museum Quarterly describes 

 a special exhibit held at the museum of 

 models, designs and other objects illustrating 

 the practise and some of the principles of 

 marine camouflage. The exhibition was ar- 

 ranged by the curator of the department of 

 natural science, and was made possible through 

 the interest and cooperation of Mr. William 

 A. Mackay, of the United States Shipping 

 Board, camoufleur of the Second Naval Dis- 

 trict, and Lieutenants Harold Van Buskirk 

 and Everett L. Warner, of the Camouflage 

 Section, Bureau of Construction and Repair, 

 United States Navy. Numerous other naval 

 officers, members of the American Society of 

 Marine Camoufleurs, and others, also con- 

 tributed to the success of the exhibit by lend- 

 ing illustrative material. 



A series of photographs made in the naval 

 laboratories at Washington, D. C.,> and Roch- 

 ester, N. T., showed successive stages of the 

 experimental work by means of which the 

 colors and patterns employed in the camou- 

 flage designs had been arrived at. These 

 illiistrations included views of the elaborate 

 periscopic " theater " at Rochester, in which 

 painted models of ships were tested under con- 

 ditions which simulated, in all essential re- 

 spects, the open ocean. The history of marine 

 camouflage was briefly traced by means of 

 labels and colored models, while approved as 

 well as experimental designs of the " low- 

 visibility" type, the British and American 

 " dazzles," and the French system, were shown 

 by means of models, photographs and colored 

 lithographs issued by the Navy Department. 



A case in the center of the exhibition room 

 contained a miniature convoy of transports in 

 charge of a cruiser and a flotilla of destroyers, 

 each camouflaged model an exact replica of its 



namesake, or, rather, the original working 

 model from which the transport or war vessel 

 had been camouflaged. A simple, illuminated 

 theater, equipped with a periscope, enabled 

 visitors to observe a model as if from a sub- 

 marine point of view, and, moreover, demon- 

 strated surprisingly well the distortion and 

 other types of illusion produced by the camou- 

 fleur's design. 



THE PHILADELPHIA MEETING OF THE 

 AMERICAN CHEMICAL SOCIETY 



The fall meeting of the American Chemical 

 Society will be held at the Bellevue-Stratford 

 Hotel, Philadelphia, Pa., under the auspices 

 of the Philadelphia Section, from Tuesday, 

 September 2 to Saturday, September 6, 1919, 

 inclusive. The Philadelphia Section, situated, 

 as it is, so near the center of our chemical 

 activities, is planning an extensive and un- 

 usual program and hopes to rival the Buffalo 

 meeting in interest. 



The Rubber Division holds its flrst meeting, 

 and a Dye Section is to be established which 

 will function as a separate section this year. 

 Philadelphia has a large number of chemical 

 industries within its limits and in the sur- 

 rounding territory, and its large and very 

 enthusiastic local membership, together with 

 the enhanced interest in chemistry manifest 

 throughout the nation, insures a large gather- 

 ing and an important program. It is already 

 certain that the meeting will be one of the 

 largest, if not the largest, in the history of our 

 society, for we have not only a continually in- 

 creasing membership, but a continually in- 

 creasing enthusiasm for the accomplishments 

 of our profession. 



Registration will take place at the Bellevue- 

 Stratford, beginning at 3 p.m., Tuesday, Sep- 

 tember 2. Information Bureau will be located 

 at the Hotel. 



The general program is as follows : 



TUESDAY, SEPTEMBER 2 



4 P.M. — Council meeting at the Bellevue Strat- 

 ford. 



7 P.M. — -Dinner for the Council as guests of the 

 Philadelphia Section. 



