MESQUITE, CAROB, AND HONEY LOCUST BEAXS. 
9 
The sound first-grade seeds averaged 0.0346 gram 7 in weight each; or 
13,111 seeds to the pound. Forbes (7) states that the small flat seeds 
are from one-third to one-fourth inch long. The seeds he examined 
were heavier than those examined in this investigation, approxi- 
mately 9,600 weighing a pound. 
A careful hand separation of over 700 perfect seeds into the seed 
coats, or integuments, and kernels gave the following results by weight 
on the air-dry material: Coats (testae), 47.86 per cent; kernels (em- 
bryos), 52.14 per cent. 
Table 4 shows the results of chemical analyses of the portions of the 
mesquite obtained by careful hand separation. 
The calculated composition of the two radically different portions 
of the fruit (the sweet, fragrant portion, composed of the entire peri- 
carp, and the seed portion) is shown in Table 5. 
Table 5. — Calculated composition of the tico principal portions of mesquite fruit (sep- 
arated by hand). 1 
Part of fruit 
[sample 
Entire pericarp (sugary 
pod and seed capsule 
material.) 
Entire first-grade seeds 
(sound and mature). 
Air-dry basis. 
Propor- 
tion of 
entire 
fruit 
(by 
weight). 2 
P.ct. 
83.42 
Mois- 
ture. 
P.ct 
10.97 
15.321 8.10 
Ash. 
EtherCrude 
ex- pro- 
tract i tein 
(crude (Nx 
fat). 6.25). 
P.ct. P.ct. 
3.31 1.32 
3. 55 3. 66 
P.ct. 
6.00 
3G.14 
Crude 
fiber. 
P.ct. 
33.29 
,42 
Ni- 
tro- 
gen- 
free 
ex- 
tract. 
Re- 
duc- 
ing Su- 
sugars crose. 
as in- 
vert. 
P.ct. 
45.11 
42.13 
P.ct. 
3.57 
P.ct. 
15.42 
Pen- 
to- 
sans. 
P.ct. 
16.97 
Tan- 
nins. 
Un- 
de- 
ter- 
min- 
ed. 
P. ct. P. ct. 
Trace. 9. 15 
Moisture-free basis. 
Part of fruit 
(sample 32869). 
52S ' E e r 
Mt" Ash ' tract 
<™ ( faT, de 
weight). Iaij - 
Crude 
pro- 
tein 
(NX 
6.25). 
Crude 
fiber. 
Ni- 
tro- 
gen- 
free 
ex- 
tract. 
Re- 
duc- 
ing 
sugars 
as in- 
vert. 
Su- 
crose. 
sans. mils - min- 
ed. 
Entire pericarp (su- 
gary pod and seed 
capsule material) 
Entire first-grade seeds 
(sound and mature) . . 
P.ct. P.ct. P.ct. 
82.97 3.72 1.48 
15. 73 3. 86 3. 99 
P.ct. 
6.74 
39. 32 
P.ct. 
37.39 
6.98 
P.ct. 
50.67 
45.85 
P.ct. 
4.01 
P.ct. 
17.33 
P.ct. P.ct. P.ct 
19.06 Trace. 10.27 
1 The figures are calculated from the results in Table 4. 
? The rest (1.26 per cent) consisted of imperfect seeds and waste. 
Efforts were next made to attain by the use of machinery the same 
sharp separation of the seed. The following machines were used: A 
small hand coffee mill; a small grain and bean cleaner, modeled after 
machines common in the industry and fitted with a blower fan, as 
well as with screens; and a large mortar and pestle. All these were 
hand operated. 
A new subdivision of the air-dry material from sample 32869 was 
thoroughly dried in a vacuum oven at 65° C. It seemed necessary 
to do the work on dry days, as the sugary portion of the pods absorbs 
This is the average weight for more than 2,700 seeds. 
59077—23 2 
