TT2 Answers to Quertes. 
for the eggs, which are covered with long, white wool, as is 
described by White. The male has four wings; the female none. 
When young, both sexes are alike. J. A. Hoee. 
289.—Semilunes of Giannuzzii—To see the folds of the 
mucous membrane and the mucous glands of the cesophagus, 
Exner recommends specially that of the dog. The cesophagus 
and trachea of a child or rabbit, taken out and hardened together, 
and sections made which include the lumina of both, are instruc- 
tive. The submaxillary gland must be hardened in absolute 
alcohol, and the sections stained in carmine and logwood. It 
should also be macerated in very weak chromic acid, and teased 
out. Minute portions of the fresh gland may also be teased out in 
iodised serum. I find that the structureless membrane of the acini 
can be coloured by maceration of the gland in a 5 per cent. 
solution of molybdate of ammonia, and subsequent treatment by 
a 4o per cent. solution of tannic acid, or a 20 per cent. solution 
of pyrogallic acid. The membrana propria of this and other 
glands may be isolated by maceration in weak soda-lye, which 
destroys the cells of the gland, but leaves for a time the membrane 
entire. It also colours yellow with iodine. V. A. LarHam. 
307.—Bread Fungus.—M/yiitta Australis is called native 
bread in Australia, where it is largely used as food by the natives. 
This fungus frequently weighs as much as from one to three 
pounds. Other species nearly allied to it, are also used in China 
for food and as medicine. (Bentley's “‘ Botany.” ) J. A. Hoe. 
327.—Cultivation of Sundew.— Louden’s “ Encyclopedia of 
Gardening” states that Dvosera Rotundifolia will thrive and 
flower well when kept in small pots in the greenhouse. ‘‘ The 
pots should be filled three parts full of peat earth, and some moss 
placed on it, the Drosera then planted in the moss, and the pots 
placed in pans of water.” I have never seen it under cultivation, 
but in its natural localities it is indeed a beautiful object. It 
grows in wild luxuriance in the marshy parts of the Island of 
Arran, notably near Glen Sannox, and nothing can exceed the 
beauty of these glittering plants when the sun shines on them, 
growing, as they do, thick and close as the daisies in an English 
meadow. J. A. Hoce. 
330.—Salt.—Salt causes thirst by lessening the amount of 
urine, which is greatly diminished in quantity. Common salt is 
given off in sweat, readily soluble in urine, less soluble, especially 
potash, in the feeces. Thirst is caused by a sensation of heat 
and dryness of the tongue, mouth, and fauces, and indeed may be 
excited by inhaling dry air. More frequently, however, the sensa- 
