moist), Petro Alexandrowsk which is situated near Chiwa 
south of the Aral Sea (drier and colder during winter, but 
warmer during summer), and Askhabad to the north of the 
FE Marts 
Fig. 1. Hydrothermals for three stations in Transcaspia, viz.: I. Tashkent, 
II Askhabad, III Petro Alexandrowsk. The ordinary lines are temperature- 
curves, and the figures to the left express degrees Centigrade. The dotted 
lines give the precipitation in centimetres. (Constructed after the method 
of RAUNKJÆR (1905, 1907). 
mountains bordering Persia (very hot and dry). The tem- 
perature and precipitation of these stations are moreover 
marked out in curves in the manner indicated by RAUNKJÆR 
(fig. 1). 
