Annual Report of the Consulting Chemist. 
267 
Consisting of : — 
Eavtby phosphates -597 
Phosphoric acid .. .. 1'322 
In combination with : — 
Alkalies -729 
Silica -072 
100-00 
* Containing nitrogen 2 13 
Compressed yeast, when mixed with hay and straw-chaff, has 
been found a useful article of food, especially for milking-cows. 
The large amount of albuminous or nitrogenous compounds in 
the dry substance of yeast, and its richness in earthy and alka- 
line phosphates, throw light on the utility of yeast as an auxiliary 
food for milk-cows : for milk, as is well known, abounds in earthy 
and alkaline phosphates ; and the casein or curd of milk is 
analogous in composition with the nitrogenous or albuminous 
compounds of yeast. 
In former reports I have repeatedly directed attention to the 
fact that the fattening properties and commercial value of palm- 
nut meal depend, in a great measure, upon the percentage of oil 
and fatty matter which a particular sample may contain ; and I 
have advised intending purchasers to request of the dealer to 
guarantee the percentage of oil or fat in the palm-nut meal he 
-offers for sale. 
It is not enough that he should give a general guarantee to 
deliver genuine palm-nut meal, for the meal may be perfectly 
genuine, and at the same time be very poor in oil, which is by 
far the most valuable of all food-constituents. 
A sample of palm-nut meal, unusually poor in oil and fatty 
matter, has lately been sent to my laboratory. The subjoined 
analysis, indeed, shows that, practically speaking, it contained 
merely traces of oil, and was much inferior to good palm-nut 
meal. 
Composition of a sample of inferior Palm-nut Meal. 
Moisture 10-88 
Oil -40 
*Albnminous compounds 18'44 
Mucilage and digestible fibre 42-91 
Woody iibre (cellulose) 22 01 
Mineral matter (asli) 5-36 
100-00 
* Containing nitrogen 2-95 
This meal was sold at Liverpool at 4/. a ton, but, although it 
was sold at 21. 10s. less money than palm-nut meal, which 
VOL. IX. — S. S. T 
