306 TRANSACTIONS OF THE 



dews are very abundant thsn, they go twenty days or even a 

 month without drinking. They do not love rainy, stormj 

 weather. They, however, love to bathe, much after the sanje 

 way that ducks and geese do, but they cannot swim. 



AGRICULTURAL COLLEGES. 



France has some. Ten years ago her chief one was at Grignon,. 

 about twenty miles from Paris. About 1,200 acres, with a large 

 dwelling house on it, formerly a royal seat ; other necessary 

 buildings added since. Charles X gave it to a society of gentle- 

 men for an agricultural school, and for 40 years, who subscribed 

 $60,000. They pay to government the old rent. Sixteen per cent 

 on their capital has been realised by them, which goes into capi- 

 tal. Free pupils supported on the profits ; two yeai"S term of 

 study, &c.; lectures daily; examination of pupils as to each pre- 

 ceding lecture ; Monitors, who labor in the fields with pupils. 

 The pupils w^ho have means, pay one hundred and sixty dollars 

 per annum. A pupil does general work, and has also a price 

 for his own work. Up at four o'clock a. M.,in summer, to bed at 

 nine o'clock. 



Veterinary school of Alfort, six miles from Paris, on the Seine^ 

 near Charenton. Two others chools, Lyons and Tholouse. Whole 

 number of horses in them one thousand three hundred and thirty- 

 two, of whicli eight hundred and thirty-eight are stallions. 



Board and lodgings at Alfort, eighty dollars a year a pupil,, 

 three hundred of them, of which government supports forty, and 

 all the professors. 



AMMONIA. 

 Is in salt products of volcanoes, ocean water, small quantities 

 in putrid urine, in decomposition of animal matter, in minute por- 

 tions in air, most in cities, where much pit coal is burnt. On the 

 window glasses of London, sulphate of it causes dirt. Originally 

 from burnt camels' dung. We get it now from distillation of pit 

 coal, animal substance, such as bone, hoof, horn. It is a com- 

 pound nitrogen 1, hydrogen 3, 



