CHAS. LENTZ & SONS 
Unimal l>older$, etc. 
2536. Guinea-Pig Holder. — The slotted tube is placed on the table, 
slot side down ; the animal enters and will remain in position 
till required for inoculation. The skin of the abdomen is 
raised with the fingers through the slot and the inoculating 
needle inserted. Requires only one operator. 
We have recently modified this apparatus by strengthen- 
ing the slotted end by means of heavy wire and turning the 
metal, thus doing away with the cross piece at the end into 
which the legs of the animal caught, preventing its easy 
removal. 
Aluminum, 2 siz3S, each ... $1 50 
Zinc, 2 " « 1 00 
2538. Kitasato's Rat Holder.— Made to order only, each 5 00 
2540. Animal Holder, for larger animals, dogs, etc 25 00 
" " smaller " 18 OO 
Illustrations marked thus,* by permission, from Abbott's "Text Book of 
Bacteriology." 
84 
