378 
TABLE II. 
Hay. 
A B C J K L A 
37.14 36.19 35.51 36.07 34.72 34.41 36.18 
36.93 36.238 35.14 36.35 34.98 34.54 36.08 
36.50 386.78 36.22 36.57 33.34 382.97 36.54 
36.94 37.21 386.27 36.66 34.09 33.79 36.30 
36.99 36.09 385.80 36.61 35.10 34.67 35.87 
87205. BUT crete ees Be cee 
Average 36.92 36.59 35.78 36.45 34.44 34.97 36.24 
Probable error 15 .49 .32 .16 49 .45 17 
TABLE III. 
Hay. 
Att ae ee tees 34.27 
LD endear urge ete phe ir 35.50 
I may add that I do not consider the trial E to be quite 
satisfactory, as but two determinations were made, and 
those with some difficulty. The method is too cumbersome 
for satisfactory work. 
For comparison, the averages for each trial are given in 
tabular form. 
Wheat bran. Hay. Hay. 
Table I. Table II. Table III. 
BUN PUR RS OOS A Eee 14.40 36.92 34.27 
BO sheet da hs wah alle Wit. fateh {ib th bBiS2 36.59 
DAS. Hsin See anid. 3b 2) Red cher: 35.78 
RP Ee Pe The Sr eee FTEs 14.73 A? 
pHa eta» cc Ra Oe PR SR ee ER 9 coe $ wiid 35.50 
pe torte ote Spake ons we ae oe eae 16.84 Be. 
RP A eats SO SSE aay 24.58 
Psi tues tees. ele wheR 26.20 
L-biOa. 08) 08 elect eehcia phat yly abAvere « sheets 14.70 Bp 
ph bias aod bo FAG Ed. wie eeu Ager Rectan 22 36.45 
Tis tosh Ge ee ig te, aves bu, Cope Mee ih le Ba wn ys 62a th 34.44 
SIE NT ORT i oe oN sc ode eters 7 ah Thee ec 34.07 
In table II, B and K were ee the same except that 
B was filtered through an abes tos filter and K through fil- 
ter paper. The abestos filter returned with the residue in 
boiling with the alkali prevents so thorough an agitation of 
the substance as in K, where nothing but the hay was re- 
turned, besides it is necessary to maintain a lower heat for 
B since the tendency to bump is considerably greater than 
in K. The faster the ebulition, even though the evapo- 
rated water be often returned, the more thorough is the 
agitation of the substance, and the more completely seem 
to be the solution of the material. 
The difference in the amount of fiber found before and 
after extracting fat is not large in the case of hay, but with 
substances rich in oil, as linseed and cottonseed meal, the 
difference would be considerable, as has been shown by Dr. 
Johnson*. In my regular analyses the fat 1s always ex- 
tracted from the substance before determining the crude 
fiber. 
*How Crops Grow, p. 392. 


