POUL-BROOD. 



479 



220 drops of solution No. 1 in a quart of syrup or honey 

 boiled with about a fifth of tepid water. To avoid the trouble 

 of counting the drops every time, it is advisable to put them, 

 the first time in a graded vial, or in a small bottle in which 

 a mark can be made for the repeated measurement of the 

 solution. The water can be measured in the same way. 



Describing the Hilbert process, Mr. Cowan, who has also 

 succeeded in curing a number of eases, writes: 



793. "One of the simplest and most rapid ways of curing the 

 disease is by Hilbert 's fumigating process, as the fumes of 

 salicylic acid have the power of penetrating everything in the 

 hive and destroying all the germs of foul-brood. The apparatus 

 used for this purpose is the fumigator improved by Mr. Ed. 



Fig. 213. 



BEKTRAND F0MIGATOB. 



Bertrand, (fig. 213). It conisists of a cylinder A, to which is 

 hinged, at D, a cover B, having a nozzle at C. This is 5 inches 

 by IVi, so as to be easily inserted between hive and floor board, 

 and it is kept in position by the fastening E. A spirit lamp H, 

 has the flame so regulated that the acid placed in the metal 

 dish I, above it, is gently evaporated. The hive to be oper- 

 ated upon is not removed from its stand, but is raised up at 

 the back off its floor-board by means of blocks of wood, and 



