132 ICE Of JNUKTHEBN HEMISPHERE 



1427. Iversen, T. 



1927. Drivis og selfangst. Aarsberetning Norges fiskerier. 1. 



1428. Jakushov, P. 



1934. Dasgrundeis. Z. geophys. 10:308-316. 



1429. Jakushov, P. 



1934. Uber das grundeis. Wasserwirtschaft 27:135-137, 169-172. 



[Descriptive; anchor and floating ice; the formation of ice 

 islands in rivers.] 



1430. Jakushov, P. 



1934. tJber wasser und eis. Wasserwirtschaft. 27:98-100,122-126. 



1431. Jasmund, R. 



1911. Fliessende gewasser. 10. Eisverhaltnisse. (In: Handbuch d. 



ingenieurwissenschaften. 4. aufl. Leipzig. Teil III, bd. 1, 

 lief. 2, pp. 323-334.) 



1432. Johnston, C. E. 



1915. Definitions (of ice terms) in: International ice observation 



and ice patrol service in the North Atlantic Ocean from 

 February to August 1914. Bull. U.S.C.G. 3:38. 



1433. Karelin, D. B. 



1936. periodichnosti ledogo rezhima. (On the periodicity of the 



ice cycle.) Sovetskaia arktika. 1936(11) :106. 



1434. Karelin, D. B. 



1940. K diskussii po ledovym prognozam. (On the discussion of 



ice forecasting.) Problemy arktika. 1940(7/8) :13-20. 



1435. Karelin, D. B. 



1940. Rabota nad ledovymi prognozami v 1940 g. (Work on ire 



forecasting during 1940.) (Sektor ledovoi sluzhby Ark- 

 ticheskogo Instituta.) (Ice service of Arctic Institute.) 

 Problemy arktiki. 1940(6) :95-97. 



1436. Karelin, D. B. 



1940. Sluzhba ledovykh prognozov. (Section of ice forecasting.) 



Leningrad, Glavsevmorputi. 60 p. (PoHtupravlenie glav- 

 sevmorputi pri S.N.K. SSSR. Bibliotechka "Stakhnovt.sy 

 Arktiki". Kn. 39.) 



1437. Karelin, D. B. 



1940. Tafanie I'da v Arktike. (Melting of the ice in the Arctic.) 



Problemy arktiki. 1940(5) :118-119. 



1438. Karelin, D. B. 



1940. Taianie I'da v Arktike pod vliianiem temperatur vozdukha. 



(Melting of Arctic ice as influenced by air temperature.) 

 Met. i. gidrol. 6(4):71-75. [Marine.] 



1439. Karelin, D. B. 



1940. Znachenie nabliiidenii "Sedova" dha ledovykh prognozov. 



(Significance of the "Sedov" observations for iceforecasting.) 

 Problemy arktiki. 1940(2) :1 11-1 13. 



