190 
Fertitisinc Marrer REMOVED BY VARIOUS FRUITS. 
(From analyses by Mr. G. E. Colby, University of California.) 
ips Total Ash.| Potash. Lime. i Nitrogen. 
lbs. Ibs. Ibs. lbs. lbs. 
Almonds* st 17:29 9-95 1:04 2-04 7-01 
Apricots ... 5-08 3-01 -16 66 1-94 
Apples 2-64 1-40 ‘11 +33 1-05 
Bananas ... 10-78 6-80 “10 ‘17 207 
Cherries ... 4-82 2677 -20 72 2-29 
Chestnuts 9-52 3°07 1-20 1:58 6-40 
Figs 731 4-69 *85 -86 2-38 
Grapes... 5-00 2°55 +25 mi 1-26 
Lemons ... 5-26 2-54 1+55 +58 1-5] 
Olives we 13-50 9-11 2-43 1:25 5-60 
Oranges ... 4-32 2-11 “97 +53 1-83 
Peaches ... 5:30 3-947 *14t “85, 1-20+ 
Pears a 2-50 1:34 “19 +34 “90 
Prunes, French ... 4°86 B10 “22 68 1-82 
Plums... ... 5-35 3-41f -25F 15+ 1-81 
Walnuts* Gs 12-98 | 8-18 1-55 1-47 5-41 
* Including Shells. { Estimated. 
The above table shows that the drain of Potash on the soil from 
the removal of fruit crops is most marked in the case of olives, 
grapes, figs, peaches, prunes, apricots, lemons, and oranges, in suc- 
cession, and least in almonds, apples, pears, plums, and cherries. 
Phosphoric Acid is higher in the ashes of quinces, almonds, 
olives, figs, strawberries, grapes (seedless varieties have less), 
peaches, lemons, oranges (except seedless varieties), and less in 
apples, pears, and cherries. 
Of Nitrogen olives require most, and are followed by peaches, 
figs, apricots, oranges, grapes, plums, lemons, while the fruits poorer 
in nitrogen are apples and pears. 
Lime is extracted from the soil by lemons, oranges, olives, and 
figs to a greater extent than by other fruits. 
These analyses throw some light on the great sustaining power 
of the olives and figs and nuts, which form an important part of 
the diet of the inhabitants of those southern parts of Europe and 
northern parts of Afvica which encircle the Mediterranean. 
They also show that the drain on the soil is greater in the case 
of the orange than in that of the apple, while the former is also 
more nourishing. It is seen that 100 Ibs. of lemon or oranges con- 
tain over lb. potash, .18 to .12Ib. of nitrogen (234 to 20z.), and 
.0581b. of phosphoric acid. 
