FIXED OILS. 155 
"They are mild and bland, require a temperature of about 
600° to make them boil, and leave a stain upon paper which 
is not removed except by a high temperature. They are 
very inflammable, and produce water and carbonic acid by 
their combustion. When passed through a red-hot tube, 
_ they give cut carbureted hydrogen, olefiant gas, &c. Olive 
oil, according to the experiments of Gay-Lussac and Then- 
_ ard, consists of — 
Oxygen, . 9.497 — 1 
Olefiant Gas, 10 eq. 70 
Hydrogen, 13.360 — 11 ——-——— 11 9 
Carbon, . 77.213 or 10 equivalents 60 
—_—_ 8 
Water, . . 1eq. 
—— 
100 parts. 79 79 
594. The following are the principal kinds of fixed 
: oil — 4 
Croton oil, from the Croton tiglium. 
Oil of Ben, wee. Guilandina moringa. 
Linseed oil, _—_........... Linum usitatissimum et L- 1 BERS 
Hemp oil, ee Cannabis sativa. 
Hazel-nut oil, —........- Corylus avellana. * 
Walnut oil, ------ + Juglans regia. 
aaa Se Cbs Papaver somniferum. 
Oil of Sesamum, .......-. Sesamum orientale. 
Olive oil, ssse-s-e- Olea europea. 
MUM ON = assis Amygdalus communis. 
week oy Res. Fagus sylvatica. 
Rape-seed oil, —......... Brassica napus. 
Cole-seed oil, —_.......... _ Brassica campestris. : 
Oil of Mustard ......... Sinapis nigra et S. arvensis. 
Cucumber oil, -......-» Cucurbita pepo et C. melopepo.” 
Caster oll,  sesiccene Ricinus communis or Palma Christi: 
Tobacco oil, sees, Nicotiana Tabacum et N. rustica. 
Plum-kernel oil, ........- Prunus domestica. 
Grape-seed oil, ......... Vitis vinifera. 
Cocoa, .ssss1+ Theobroma Cacao. ae 
late oll, FF Soe Leuris noble, 
Palm SE ee a & Elais guineensis, sncceche a Aiea. 
: The Jouifta Africana, belonging to the sme amy, fares a grea 
sun of oil, pene bacocont 
