212 COFFEE ANALYSES AND MANURES. 
loses 200 leaves per annum (2,000 have actually been 
calculated), that would be, for an acre of 1,200 trees, - 
a lb. Itis interesting to learn from Mr. Hughes 
that :— 
‘* Again in the analysis of coffee pulp wefound that 
100 parts by weight of ripe cherries yielded 57°83 
parts of beans (with mucilage attached) and 38°98 parts 
of pulp, allowing 3:19 parts for water lost during 
stripping. 
‘** Further, I find by experiment that the above weight 
of fresh damp beans, when properly washed and after- 
wards sun-dried, gave 35°87 parts by weight of ordin- 
ary parchment coffee as prepared on the estate. 
Consequently 100 lb. of ripe cherries may be fairly 
taken to represent in round numbers 36 lb. of parch- 
ment, 39 lb. of pulp (natural state), and 25 Ib, of 
water (with the saccharine mucilaginous coating origin- — 
ally attached to the bean).” 
Assuming the average yield of coffee per acre to be 
a ove: (784 Ib.) of parchment, we should have 849 Ih. 
of pulp. 
With this estimate of a really good crop, according to 
present circumstances we may proceed to ascertain, 
with the aid of the analysis already furnished, what 
are the proportions of the important elements removed 
respectively by the seed. pulp, and leaf. 
CONSTITUENTS REMOVED PER ACRE BY AN AVERAGE CROP 
OF COFFEE, ASSUMING 7 CWT. OF PARCHMENT FROM 
1,200 TREES. 
Seed. | Pulp. ,Leaf.* (Lotal. 
Par- 
7 cwt. tially 
Parch- eae dried. |W ght. 
ment. |. “P |240000 
leaves 
lb. lb. lb. lb. 
=784 |=849 |=247 |=1880 
Wiater tai. 3 he ...,104°3 | 664°8} 24:0 | 793-1 
Organic Matters ... ...,653°8 | 168°7| 204-2 | 1026-7 
Mineral (Ash) Matters ...| 25°9 ) 15°5| 18°8 | 60:2 
lb. 784:0 | 849-0) 247°0 | 1880-0 
Containing Nitrogen...) 11°5 28} 66) 209 
* Probably 200 leaves for each tree is much too low 
an average, but the necessary connection can easily be 
made for large trees having 1,000 to 2,000 leaves. 
