SOCIETY MEETINGS. 
487 
Dr. .Rogers believed that such digressions, carefully made, 
would lead to no trouble, but urged that no new men irregularly 
engaged in the profession be recognized, as opportunities for their 
proper qualification were now plentiful. His remarks were en¬ 
dorsed by Dr. Miller, and thoroughly acquiesced in by Dr. Hos¬ 
kins. Some remarks followed also as to the low standard some 
schools were adopting. 
Dr. T. B. Rogers, milk inspector of southern district of New 
Jersey, then read an essay on “Milk.” His object was to en¬ 
lighten the members on the methods of examining pure and im¬ 
pure lacteal fluids. 
In his remarks he stated that the fats varied much, but the 
other solids not fats were almost constant, ranging about £ of 1 
per cent. The lactometer is used in America, which is a finely 
adjusted hydrometer. The 100 mark is placed at 1,029, which 
is the mean analysis for milk, based on the examination of milk 
from several thousand herds ; the specific gravity of water being 
1,000, of milk 1,029 at the lowest pure state. A difference of 
temperature of milk makes a difference in specific gravity ; the 
colder the milk, the more it is in favor of the milkman ; the 
warmer it is, the more in favor of the State. It should be about 
60 per cent. The lactometer is not the entire test, for the more 
milk is skimmed the higher it goes ; for, as you remove the lighter 
parts in the shape of cream, the denser becomes that remaining, 
and, when watered, buoys up the lactometer. Good whole milk 
will have no blue line when exposed in a glass vessel; a little 
water gives the line ; 12 per cent, of solids is necessary for good 
milk, with at least 3 per cent, of fats.* Examinations by the 
Board of Inspectors showed that there was no relative difference 
between evening’s and morning’s milk ; sometimes the morning’s 
was better, and at other times the evening’s exceeded in richness. 
Salicylic and boracic acids were used to preserve the milk, and 
chalk or bicarbonate of soda were used when the milk was of an 
acid tendency. These points were valuable to physicians, as they 
became of importance in certain eases ofjillness when such milk 
was being used. 
The writer gave as a quick practical analysis the following 
