HIS paper has been published in Danish under the title 
4 à «Træk af Vegetationen i Transkaspiens Lavland» (Ko- 
benhavn 1911, Gyldendal), and in «Botanisk Tidsskrifte, Vol. 
32. The present edition is issued with but slight alterations. 
The translation has been revised and corrected by Dr. 
W. G. SMITH, of the College of Agriculture, Edinburgh, who 
has assisted also in proof-reading. I would offer Dr. Smiru 
my sincere thanks for his valuable assistance without which 
it would hardly have been possible to find correct English 
equivalents for Danish botanical terms. 
A Russian edition is under preparation. 
The author. 
