
CORRESPONDENCE. 111 
microscope, more especially by Kutzing, Pineau, Nicolet, Pouchet, Jolly 
water, as the numerous experiments by Po cn Meunier, etc., have 
e discussions in the Fiench anions v Sciences for the last eight 
wi ë 
infusoria, animal and vegetable, “originate in oleo-albuminous molecules, 
which are formed in organic fluids, and which, floating to the surface, 
at 
ur 
the molecules by their coalescence, produce the lower forms of vegetable 
and animal life. 
CuicaGo Microscopic CLUB. m have received the Constitution and 
vara of this new society, and the Proceedings of the meeting hel 
January 26th, when Prof. Freer ee d human blood cells showing the 
cell as a bi-concave disc, with a nucleus appearing as a prominence in the 
centre; most microscopists having denied the existence of a nucleus in 
the e human blood disc 

ANSWERS TO CORRESPONDENTS. 
A. J. O., Morristown.— We would be much obliged for specimens of sheep ticks 
and their eggs and dui with notes on their habits. 
ou 
xtern y: 
worms, such as the tape-worms and the “round worms.” ides e ay be co Med in in 
v eges of ker oe eek | alcohol, and sent by mail in a strong pasteboard box, or roll 
Barone, any one ever found t e bed-bug in swallow's nests; "they occur thus in 
» Otiseo, N. Y.— Alo making your insect case as nearly air-tight as possible, 
place’ camphor In à paper with pin holes or smear the box with creosote, or keep ben- 
In constant A seanda i the box. Beetles may be care ba yr a solution of cor- 
sublimate pr: s to in the nig tyra ‘Above all, watch 
carer for Suet made b» rs devouring Insects, wi which falls e bottom of the case 
Containing them, by whic may detect their presence in the ad 
THE DATE PaLM.—In answer to a correspondent who enquires whether datos om ae 
grew so low that a man can pick and eat them as he walks under the tree, we answ 


