METEOROLOGY. 19 



Annual siimmarij of meteorological observations in Wyoming. 



* Eecord not complete. 



The average annual mean temperature for the 6 experiment farms 

 and Bates Park (Freelaud) was 42.7° F. The greatest annual precip- 

 itation, 19.25 inches, occurred at Bates Park. The average precipita- 

 tion for the year for places furiiisliing complete records, as given in the 

 table, was 11.36 inches. 



" During the year 1893 the climate has been exceptional in many 

 respects and unfavorable to the growth of crops." September was 

 colder than in previous years, frosts generally appeared earlier, and 

 precipitation was unusually small. 



The currents of the G-reat Lakes, M. W. Harrington ( U. S. Dept. 

 Agr., Weather Bureau Bui. B, Feb., 1894, pp. 6 (folio), maps 6). — The 

 methods used and the results obtained in a study of the currents of these 

 lakes during the navigation seasons of 1893 and 1893 by means of float- 

 ing bottles are reported, and a map of each lake is giv^en on which the 

 probable courses of the floating bottles are traced, and from these cer- 

 tain well-defined currents are outlined on a general current chart of all 

 the Great Lakes. The data upon which these charts are based were us 



