764 



SCIENCE. 



[N. S. Vol. VII. No. 179 



birds and mammals in different parts of the 

 United States. While results obtained in 

 this way express opinions rather than exact 

 statistics, the column showing the percent- 

 ages of decrease in bird life during the last fif- 

 teen j^ears will be of value in arousing the 

 national sentiment for the preservation of 



DECEEASE IN BIRD LIFE IN THIETY STATES. 



The shaded portions show the percentages of de- 

 crease throughout the States named during the last 15 

 years, according to the reports made to the New York 

 Zoological Society. 



Maine 52% 



New Hampshire . . . 32% 



Vermont 30% 



Massachusetts .... 27% 



Rhode Island 60% 



Connecticut 75% 



New York 48% 



New Jersey 37% 



Pennsylvania 51^o 



Ohio 38%' 



Indiana 60% 



Illinois 38% 



Michigan 23% 



Wisconsin 40% 



Iowa 37% 



Missouri 36% 



Nebraska 10% 



North Dakota 58% 



District of Columbia . 33% 



South Carolina 32% 



Georgia 65% 



Florida 77% Bl^BHBIHBg^Bnae 



Mississippi 37% 



Louisiana 55% 



Arkansas 50% 



Texas 67% I 



Indian Territory . . 75% B 



Montana 75% 



Colorado 2S% 



Idaho 40% 



Average of Above. . . 46% 



our rapidly disappearing wild life. The 

 coi'respondence is published in detail, and a 

 large edition of this special paper in the 

 Annual Report has been ordei-ed for dis- 

 tribution in various parts of this country 

 where it will be of the most service. 



During the past year four honorary 

 members have been elected to the Society 

 as follows : 



Mr. Arthur Erwin Brown, Philadelphia Zoological 

 Gardens. 



Professor Daniel Giraud Elliot, Field Columbian 

 Museum, Chicago. 



Dr. C. Hart Merriam, Director of the Biological 

 Survey, U. S. Department of Agriculture, Washing- 

 ton, D. C. 



Dr. Philip Lntley Sclater, Secretary of the Zo- 

 ological Society of London. 



Public interest in this project has been 

 stimulated by means of popular illustrated 

 Bulletins. The Annual Report also is fully 

 illustrated by engravings showing the 

 Park as it is, and the London Zoological 

 Gardens. A large colored map, executed 

 by the Matthews-Northrup Co. , of Buffalo, 

 is included in report, and shows in detail 

 the final plan as approved by the Society 

 and the City. 



Henby F. Osbobn. 



ENGINEERING NOTES. 

 The opportunity for further improvement 

 in the manufacture of armor-plate and con- 

 sequent reduction of cost and price is well 

 seen in comparing prices of this class of steel 

 with those of other and more familiar sorts. 

 "With rails costing but $15 to $17 a ton, f 

 cent a pound, to make and selling at fifty 

 per cent, higher figures in the market, and 

 armor-plate at the following quotations, say 

 at 25 cents a pound, there is obviously a 

 grand opportunity for the mills to make 

 money to-day and the inventor and the 

 breaker of the monopoly to make more 

 monej' later. The figures which follow are 

 taken from bids of various makers for 

 armor-plate to be supplied the Russian 



