| Per Cent. | | |
|___________|________________|_________________|________|____________|
| | | | | |
| 0.9259 | 290.7 | 0.81 | 17 | 126.2 |
|___________|________________|_________________|________|____________|

_Castor Oil._--The castor oil plant is really a native of India, but it
is also cultivated in the United States (Illinois) and Egypt.

A typical commercial sample tested:--

________________________________________________________________________
| | | | | | |
| Saponi- | Acidity | | | Optical | Refractive |
| fication | (as Oleic | Titre, | Iodine No. | Rotation | Index at |
| Equi- | Acid) | deg.C. | | [alpha]_{D} | 25 deg. C. |
| valent | Per Cent. | | | | |
|___________|___________|________|____________|_____________|____________|
| | | | | | |
| 310 | 1.5 | 2.8 | 84.1 |+ 4 deg. 50' | 1.4787 |
|___________|___________|________|____________|_____________|____________|

_Fish and Marine Animal Oils._--Various oils of this class have, until
recently, entered largely into the composition of soft soaps, but a
demand has now arisen for soft soaps made from vegetable oils.

We quote a few typical analyses of these oils:--

_________________________________________________________________________
| | | | | | |
| | Specific | Saponi- | Acidity | | Unsaponi- |
| | Gravity | fication | (as Oleic | Titre, | fiable |
| | at 15 | Equi- | Acid) | deg.C. | Matter |
| | deg.C. | valent | Per Cent. | | Per Cent. |
|__________________|__________|__________|___________|________|___________|
| | | | | | |
| Pale seal oil | 0.9252 | 289 | 0.947 | 15.5 | 0.8 |
| Straw seal oil | 0.9231 | 288 | 4.77 | 15.8 | 1.2 |
| Brown seal oil | 0.9253 | 291 | 16.38 | 16.2 | 1.9 |
| Whale oil | 0.9163 | 297 | 1.49 | 16.1 | 1.8 |
| Dark whale oil | 0.9284 | 303