[he Species of the Genus Larix. 43 
These three trees as well as those in the first table 
show that the rate of growth can vary considerably, even 
within the same area, but, taken as a whole, the figures 
indicate only a slow rate of growth, agreeing well with the 
descriptions (CAJANDER: 1904, 1. c. p. 23). 
MIDDENDORFF supplies information with regard to the 
appearance of the larch near the Aldan River and its tri- 
Fig. 12. L. Gmelini (Rupr.) Gordon. very old, stunted specimen, from 
lat. 72'/2° N., river Novaja. From Middendorff, Reise, 4. Vol. p. 605. 
butary, the Milja, from about lat. 60° N. His illustration 
(Vol. IV, 1867, p. 538 reproduced here as Fig. 13) of a tree 
near the Aldan River, bears witness to good shape, and 
his measurements of trees on the Milja at lat. 60° N. (1. c. 
p- 539) indicate considerable size as well. One of the tallest 
trees found was 80 ft. high, the girth of the trunk 3”/4 ft. 
above the level of the ground being 6 ft. 4 inch., and at a 
height of 56 ft., 2 ft. 4 inch.; from the district] around 
Jakutsk eastwards through the Stanowoj Range, the East- 
Siberian larch also develops into a valuable forest tree. The 
tallest trees mentioned by MippeNporrr were found on the 
west slope of the Stanowoj Range, and were 80—100 ft. 
high. In a more southerly direction, in the neighbourhood 
