MESQUITE, CAROB, AND HONEY LOCUST BEANS. 
13 
plished by sieving and the use of a blast of dry air (a winnowing 
process) , which produced an effect not unlike that of suction fans 
or aspirators in a grain mill, was unsatisfactory. The results of this 
experiment, the proportionate weights of the several separations, 
and their chemical composition are reported in Table 8. 
Table S. — Chemical composition of separations from mesquite bean meal. 
Portion separated from sample 30179. 
"3 6 . 
'Ei cT~ 
8-lS 
- 
Composition. 
Sam- 
ple 
No. 
£ 
3 
"o 
CO 
< 
V 
u g 
a 
u 
& 
o 
2 . 
P 
— 
httS 
'o c3 
d 
c 
o 
■z 
0Q 
33311 
33312 
On 3 mm. sieve; largely husks 
Sugary concretions; on 3 mm. and on 
20-mesh sieve; ' heaw 
P.ct. 
17.6 
2.1 
2.0 
13.0 
4.2 
15.9 
... 
17.3 
5.1 
12.5 
P.ct. 
2.3 
3.1 
P.ct. 
5.5 
5.1 
P.ct. 
0.4 
1.4 
P.ct. 
3.1 
6.9 
P.ct. 
51.8 
17.5 
P.C*. 
36.9 
66.0 
P.C<. 
1.0 
2.2 
P.ct. 
6.9 
35.5 
33313 
Broken seeds, husks, etc., on 10-mesh 
33314 
33315 
Broken seeds, sugary concretions, etc., 
through 10- on 20-mesh sieve. 
Broken husks, chaff, seed coats, etc., 
through 20- on 40-niesh sieve; light 
Broken seed kernels, coats, etc., through 
20- on 40-mesh sieve; heavy 
Broken husks, kernels, etc., through 40- 
on 60- mesh sieve 
7.4 
5.1 
5.6 
4.6 
4.8 
4.1 
4.1 
3.7 
3.9 
4.2 
4.0 
4.1 
4.5 
5.3 
2.3 
1.4 
3.0 
1.2 
1.4 
1.8 
2.2 
17.4 
9.1 
23.1 
11.1 
9.6 
10.0 
12.8 
12.4 
23.8 
15.3 
26.4 
24.9 
19.9 
12.1 
56.8 
56.7 
None. 
16.3 
33316 
33317 
33318 
33319 
33320 
48.8 
52.7 
Trace. 
.1 
18.8 
21.0 
Like sample 33317, but through 60- on 
80-mesh sieve 
Like samnle 33318, but with more sugar, 
through 80-on lOO-mesh sieve 
Through 100-mesh sieve; largely sugary 
mesocarp 
55.2 1.1 
59.7 1.2 
63.5 , 1.0 
21.2 
24.8 
33.3 
Miscellaneous material and intangible 
loss 3 
3.3 
1 The numbers of the sieves refer to the number of meshes to the inch; the mesh is square. 
* Not analyzed. 
« Insignif cant miscellaneous material, not analyzed. 
Although the preparation of commercial sugar 9 for table sirup 
is not properly within the scope of this investigation, the analysis 
of the residue after subjecting the sugar-bearing material of the 
mesquite bean to water extraction (by diffusion) is pertinent. Sam- 
ples of pod. husk, and ground whole fruit were treated with boiling 
water, by diffusion, in such a way as to extract most of the soluble 
substances. The undissolved residues were dried, ground, and 
analyzed; and the nitrogen content, sugar content, and acidity of 
the water extracts were determined. 
Table 9 shows the quantity and composition of moisture-free 
undissolved residue, the quantity of moisture-free solids extracted, 
and the percentages of protein and sugars and the degree of acidity 
in the extracted solids, as calculated from the results of the deter- 
minations made on the water extract. 
9 Beet-sugar houses are often glad to obtain other material on which to work after the close of the 4-month 
beet-sugar season. Many turn their attention to the manufacture of sorghum sirup. If an abundant 
supply of mesquite pod material were available, it is possible that such factories could be operated on the 
manufacture of sugar or sirup frcm the pods, provided the problem of defecating and purifying an extract 
of this material were solved. 
