REPORT OF THE CHEMIST. 93 
2. Husk and seed separately: , 
Seed Husk 
RUMEIIET EE 2S Stes SERS Een Asm cabo atin de cicma alma a ctaica aeieierae 2, 51 2. 61 
PRMMEMNOUS Tavbels. ANC. TAliNd..<...cssedcecascouseeseaveeesas cs “edie trace. 
PESO! pe Ot See eee elk. SP seo deeee a ee ay eee 85. 438 
PPR PERN ey oh. cs co etd cttele eee 4 wid sem elajete ae Leif 11. 90 
IPERS Rint 2128 2 Ls  otoce va asbale paouledue seed TBPOOTN Ol oo 
100. 00 100. 00 
The weight of the husk is to that of the seed as 1:16. The ash of the 
seed consists of salts wholly soluble in water, they being phosphates or 
the alkalies, with traces of alkaline chlorides and sulphates. The phos- 
phoric acid is chiefly united with potassa. ‘The ash of the husk differs 
in containing chiefly common salt, and phosphates of lime and magne- 
sia. The amount of oil which the nut contains is very large; it varies 
according to latitude and other favorable conditions; and in the south 
of France and other countries of Mediterranean Europe the seeds are 
pressed to obtain the oil, which is applied to table use. The mare, or 
pressed cake, is used both as food for cattle—in which it resembles lin- 
seed cake—and also is exported to Great Britain for use as a manure. 
If any surplus remains after sending the nut to market, it might be 
used as winter food for cattle. As the whole of the oil and albumen lie 
in the nut and not in the husk, there is little nutritive material in the 
latter. ‘The most of the French cake is derived from seed grown in Al- 
giers, where the plants flourish vigorously, and afford much more oil 
than those grown in this country. It is pessible that the farther south 
the nut is grown the more oil will be developed in the seed. The Al- 
gerian growth furnishes 25 to 27 per oent., and the ash of the cake as 
analyzed by Dr. Anderson, of Edinburgh, amounted to 1.25 per cent; the 
nitrogen of the cake amounted to 5.39 per cent. As the quantity of oil 
in the Virginia growth is less than in that cf Algiers, the percentage of 
albuminous material is higher, and probably amounts to a little over one- 
third of the whole product, which would bring the nitrogen element up 
to 6 per cent. ’ 
The result of an analysis of the cake, or marc, of the Arachis hypogea 
is given in the Transactions of the Highland and Agricultural Society 
of Scotland, vol. 6, p. 556. (Edinburgh, 1855.) The sample was for- 
warded from Bordeaux to Edinburgh, and the analysis made by Dr. 
Anderson ; a second sample imported into Leith was also examined. 
The composition of both is given here: 
Bordeaux. Leith. 
PL nS SERS St 50,5 8 De ene ee re 11.56 10. 01 
0 AE RSS eee Sears BS n/aim c=) bo aie ee ee ee ee 12.75 6.78 
PRBETOMS, COMPORMUS nee tera Sas 20s cn 2s con. e se eee 26.71 33. 8d 
(oo non OEE AAR se 5 ee eres eee 3. 29 3.78 
LORD ooo (OCR ERE EEEEP OG. COD Cgc Eee eee eee oe tee 45. 00 45. 5 
SS ><) eee pee Se eee 100. 00 100. 00 
SepemnetR wee S55 Paws = 2 os Se get wo dis + - pope ob ie! A, 27 5. 39 
PS LE NOSPHALES: - 2.0.4 5)20 Sasid 59 50)s = a ae ge ite 7 1.14 
eas ; Praephoric acid 2.2422) ose sacs aan eps at aie 0. 08 0. 52 
' As the ash consists almost wholly of soluble phosphates, (phosphates 
of soda and of ammonia.) with a small amount of common salt, the most 
useful artificial manure which can be used for it is one which contains 
the materials of a superphosphate, or one already made—boues in pow- 
