— 15 — 



moisl), 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 



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 Raunkj^r (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 RAUNKJiER 

 (fig- 1). 



