85 
“ The name (a dimunition of ydpuvxoc, sacculus, marsupium) 
is suggested by the membranous envelope, which preserves the 
animalcules from being dried up during the alternations of 
dryness with moisture, which they are exposed to by their 
habitat in mosses. (Hence there is a very small step to Greef’s 
habitat under mosses.) They are procured by lightly pressing 
the Jungermannie, moistened by the rains of November or 
December, or after they have been preserved a little time in 
water.” 
The objects must be watched in their living state to be 
thoroughly appreciated. We can give here only a brief 
account, as an aid to other microscopists to look after them. 
Researches on Rhizopods—Dr. Fripp, of Bristol, gives 
in a late number of the proceedings of the Natural History 
Society of that city, a most excellent account of Greef’s 
researches on terricolous Ameebe. 
An extensive memoir on Amphizonella and other new 
rhizopodous forms, from the pen of Mr. Archer, of Dublin, 
is ready for our April number. We are compelled to postpone 
its publication owing to an unfortunate delay in executing 
the coloured plates accompanying it. 
