BALTIC AND NORTH SEAS 73 



731. Arnold-Ahab'ev, V. I. 



1928. Ledovye avarii v Balticheskogo More. (Ice averages in the 



Baltic Sea.) Morskoi sbornik 1928(4) :162-181. 



732. *Arnold-Ahab'ev, V. I. 



1929. Issledovaniia prochnosti I'da Finskogo Zaliva v 1923, 1927, 



i 1928 gg. (Investigation of the strength of the ice in the 

 Gulf of Finland in 1923, 1927, & 1928.) Izv. Glavn. 

 geofiz. obs. 1929(2) :15-28. 



733. Arnold-Ahab'ev, V. I. 



1929. Rezul'taty piatiletnikh ledovykh i gidrologicheskikh issledo- 



vanii s russkikh ledokolov v Finskom Zalive i Baltiiskom 

 More. (Results of five years ice and hydrologic research 

 by Russian ice-breakers in the G. of Finland and the Baltic.) 

 Trud. 2. Vse. gidrol. s'ezd, Leningrad. 2:417-426. 



734. Arnold- Aliab'ev, V. I. 



1929. Usloviia plavaniia vo I'dakh Finskogo Zahva pod provodkoi 



ledokolov v zimu 1926-27 g. (Conditions for ice navigation 

 of the Finnish Gulf by icebreakers in winter of 1926-27.) 

 Zap. gidrogr. 55 :89-lb4. 



735. Arnold- Aliab'ev, V. I. 



1932. Die eisdecke des Finnischen meerbusens nach untersuchungen 



an bord der russischen eisbrechers 1922-1929 (eine struk- 

 turbeschreibung). Int. rev. hydrob. 28:68-89. 



736. Arnold-Ahab'ev, V. I. 



1933. Ice service and the ice station of the Leningrad Hydro- 



meteorological directorate. Rep. 4th Hydrol. conf. Baltic 

 states. 76. 



737. Arnold-AIiab'ev, V. I. 



1933. K voprosu o khimizme I'da Finskogo ZaUva, v sviazi s izu- 



cheniem ego prochnosti. (On the chemical properties of the 

 ice of the Finnish Gulf in relation to its strength.) Izv. 

 Akad. nauk. Fiz.-khim. inst. 6 :229-233. 



738. *Arnold-Aliab'ev, V. I. 



1933. L'dy Finskogo Zaliva po dannym issledovanii s sovetskikh 



ledokolov za period 1922-1932. (Ice in Finnish Gulf 

 according to obesrvations of Soviet icebreakers during the 

 period 1922-1932.) Rep. 4th Hydrol. conf. Baltic states. 

 77. 



739. Arnold-Ahab'ev, V. I A. 



1928. The ice-conditions of the Baltic Sea and their study. (In 



Russian.) Trud. Leningrad, otd. Vse. nauchn. inzh.- 

 tekhn. obshch. vodn. transp. 2/3:85-116. [Unverified refer- 

 ence.] 



740. ♦Bachmanov, B. M. 



1930-1932. State of the ice in Neva Bay 1929, 1930, 1931. (In Russian; 

 title varies.) Zap. gidrogr. 63 :78-79. 65 :153-155. 1932(3) : 

 138-139. 



