Lemma

Proposition introduced and proved, not in proper sequence, but solely as auxiliary to another theorem. Chandler's Encyclopedia IMG:content-1061.png:[merged small][merged small][merged small][merged small][merged small][merged small][graphic] IMG:content-1062.png:[graphic] Lemming ( Myodes lemmus ). straight on acro lakes, rivers, etc.. until they drown in the sea; meanwhile their numbers are depleted by the preying of numerous enemies. The snowy lemming turns white in winter: it is 4 to 6 in. long. The young are 3 tos in number.