1895.] MYODES LEMMUS. 27 
In those of the original stock which were going to bring 
forth their fourth litter, the number of young was still never 
under 5, often 6, and in one case 7. 
Qn the other hand, the number of embryos in the pregnant 
young females of the first litter of the year was, as å rule 
less, never exceeding 6, but very often only 3. Ås previously 
mentioned, å young female, which possibly belonged to the second 
set of the year, contained but two fotuses. 
The young of a litter are often rather unequally developed, 
especially if the litter is å large one. One such family (which 
I discovered on the 14th August) thus contained 7 somewhat 
large, and 3 considerably smaller individuals. 
The two sexes. TI could not with any certainty prove any 
true inequality in the numbers of the two sexes. The old indi- 
viduals were only present in few, and steadily decreasing num- 
bers. Of 14 of the original stock which I examined on the 15th 
August, there were, however, only four males, the rest females. 
Of young individuals, which formed the bulk of those of the 
year, both sexes appeared to be somewhat equally represented, 
and no decisive superiority of either the one on the other was 
then observable. It appeared, however, as if the male contingent 
was somewhat larger than that of the females!. It has, how- 
ever, not yet been stated, if the conditions are the same amongst 
those which swarm in the lowlands. 
Young 1n the nest. Concerning the development of the infant 
young in the nest, Mr. T. T. Somerville has published å number 
of observations which he too made at the same locality (Gaus- 
dal), during the summer of 1891 (see Proc. Zool. Soc. Lond. 
1891, p. 657). 
"On the 13th of July we secured å Lemming which, al- 
though apparently not full-ørown, seemed likely to have little 
1 The statement made by me in 1876 (see Journ. Linn. Soc. Vol. 13, 
p.- 330) that the males were in an åbsolute majority, may possibly 
have been founded upon a solitary instance of their appearance. 
Certainly this did not prove to hold good on the above mentioned 
ocaasion (before their emigration). 
