184 



ANNUAL REPORTS OF DEPARTMENT OF AGRICULTURE. 



Recherches sur les Centres d'Action de I'Atmospherc (Upsala, etc., 

 1910). 



The Bureau of Soils of this department pul)hshed a bulletin by 

 E. E. Free, The Movement of Soil Material by the Wind, which deals 

 very fully with the subject of atm()S{)heric dust, and is acconii^anied 

 by a well-nigh exhaustive bibliography of this subject. Secular 

 changes of climate during the post-glacial period form the subject of 

 a large volume of reports by numerous collaborators, issued under the 

 direction of the Eleventh International Geological Congress. (Die 

 Veriinderung des Klimas seit dem Maximum der letzten Eiszeit, 

 Stockholm, 1910.) 



Climatography was represented by the second and final volume of 

 J. Maurer's Das Klima der Schweiz (Fraucnfeld, 1910); Tetens and 

 Linke's Das Khma von Samoa (Berlin, 1910); O. L. Fassig's (limate 

 of Porto Rico (extracted from Register of Porto Rico, 1910, San Juan, 

 1911) ; a second part of G. Hellmann's Das Klima von Berlin (Berlin, 

 1910); F. Eredia's La Temperatura in Italia (Rome, 1911); and fully 

 a score of other valuable publications. The tliird volume of Hann's 

 Klimatologie, mentioned above, was, however, the all-important 

 climatographic publication of the year. It deals with the climates 

 of the temperate and polar zones. 



General works on meteorology have recently been published in Rus- 

 sian, Spanish, Dutch, and modern Greek, by Voeikov, Oliver, Guhk. 

 and Eginitis, respectively. 



EXAMINATIONS FOR PROMOTION. 



The total number of examination papers received and rated during 

 the year was 295, as compared with 258 during the preceding year. 

 Following is the record in detail : 



Subject. 



English grammar 



Arithmetic 



Elementary meteorology 



Essay writing 



Algebra 



Physics 



Trigonometry 



Astronomy 



Plan t physiology 



Advanced meteorology.. 



Total 



1910 



August. 



62 



Novem- 

 ber. 



12 



14 



12 



13 



13 



9 



6 



1 



3 



1 



84 



1911 



Feb- 

 ruary. 



9 



10 



9 



11 



10 



5 



4 



3 



4 



3 



68 



May. 



8 



3 



3 



18 



11 



11 



5 



7 



7 



8 



81 



Total. 



36 

 33 

 30 

 49 

 40 

 29 

 18 

 19 

 22 

 19 



295 



Passed. 



20 

 26 

 23 

 34 

 30 

 21 

 15 

 19 

 21 

 17 



226 



Failed. 



16 

 7 

 7 

 15 

 10 

 8 

 3 

 

 1 

 2 



69 



TELEGRAPH DIVISION. 



The various telegraph and telephone lines owned and operated by 

 the Weather Bureau have been maintained in good condition at a 

 total outlay of less than $500 for minor repairs. 



The Block Island-Narragansett section, which extends from the 

 island co Narragansett Pier, has worked excellently and with little 

 interruption during the entire year. 



The Norfolk-Hatteras line was down for 29 days, but Hatteras 

 weather reports failed to get througli (»ii timo on only 15 days, tlie 



