CHEESE. 93 



if two together in one frame, about 5Z., and may be used to 

 exert a pressure varying from 1 cwt. up to 30 cwt., or even 

 more. We may also name here, as a recent invention with 

 probably a future, a series of cheese-shelves arranged in 

 a book-case form, i. e., closed on one side, and slung on 

 two pivots, enabling it to be swung round, bottom upwards, 

 so that the top of each shelf containing cheese becomes, 

 in its turn, the floor on which those cheeses rest ; and the 

 whole work of turning a number of cheeses is done at once. 



Insects affecting Cheese. Cheeses are liable to the 

 attacks of various insects, the principal of which are the 

 cheese-mite and the cheese-fly, Piophila casei, whose 

 maggots are the well-known jumper. The cheese-fly, 

 we may add, is a little greenish-black fly, with yellowish 

 head and legs. In order to escape its attacks, the cheeses 

 should be pressed dry, and so made as not to crack ; they 

 should also be repeatedly wiped with a flannel cloth, and 

 turned on boards kept clean by scrubbing and occasional 

 rubbing with fresh oil. 



