498 The American Naturalist. [May, 
mesodermic and Escherich calls them “primary organs.” Starting 
from such a simple case as Carabus the author shows how the endless 
variety of complications may be reduced to some order, as illustrations 
of progressive specialization.—Journal Royal Microscopical Society. 
Lamp Chimneys for Breeding Cages.—Now that the insect 
season is opening it will be opportune to give some attention to the 
methods of rearing larve. 
The common lamp chimney makes an excellent cage for this purpose 
and one which commends itself by its cheapness as well as by its con- 
venience. 
If the larva is to be reared on a small potted plant, the lamp chimney 
is placed over it and is pressed down into the earth in the pot. 
The top may be closed by tying over it a pieceof muslin. A watch 
glass just large enough to lie within the top makes a very neat method. 
Lantern globes, which may be used in the same way may be closed by 
inverting tumblers over them. 
Potted plants are not always available when the insects must be fed 
on leaves or stems. These may be kept fresh by putting the stems in 
water. A cork just fitting the bottom of the chimney is bored so as to 
hold a homeopathic vial for the water produces a suitable adaptation 
of this form of cage.—Entomologists Daily Post Card. 
The Name of the Southern or Splenic Cattle-Fever Par- 
asite.—The generic name given by Drs. Smith and Kilborne, having 
been previously used in Zoology, must be dropped. I propose the 
name Piroplasma to replace it. 
PIROPLASMA BIGEMINUM (S. & K.) 
Syn. Pyrosoma bigeminum Smith and Kilborne, Repts. Bn. An. Ind. 
’91-’92 (1893), p. 212, plts. IV-IX.—W m. Hampron Parron, Hart- 
ford, Conn. 
