FREE BOOKS

Author's List




PREV.   NEXT  
|<   718   719   720   721   722   723   724   725   726   727   728   729   730   731   732   733   734   735   736   737   738   739   740   741   742  
743   744   745   746   747   748   749   750   751   752   753   754   755   756   757   758   759   760   761   762   763   764   765   766   767   >>   >|  
nuts are transhipped to France, where they command a ready sale; are there converted into oil, and thence find their way over the world in the shape of olive oil; the skill of the French chemists enabling them to imitate the real Lucca and Florence oil, so as to deceive the nicest judges. Indeed, the oil from the pea nuts possesses a sweetness and delicacy that cannot be surpassed. Advices from the West Coast of Africa to the 16th August, 1853, report that the ground nut season had closed; the quantity shipped during the season having exceeded 900,000 bushels. The yield has increased 20 per cent, each year for the last three years, and it is expected the increase will be still greater in the forthcoming season. TEUSS OIL.--The Chinese use what is called teuss or tea oil, for food and other purposes. I have alluded to it under the head of pulse, at page 312. It is obtained, however, from a species of the ground nut, and is sold in Hong Kong, at 2s. 6d. the gallon, being imported from the main land. By a local ordinance it is imperative on every householder at Victoria, Hong-Kong, to have a lamp burning over his door at night. When burning, this oil affords a clear, bright light, and is not so offensive to the smell as train and other common lamp oils. TOBACCO SEED OIL.--A discovery, which may prove of some commercial importance, appears to have been made by a British resident in Russia, namely, that the seed of the tobacco plant contains about fifteen per cent. of an oil possessing peculiar drying properties, calculated to render it a superior medium, especially for paints and varnishes. The process employed for the extraction of the oil is to reduce the seed to powder, and knead it into a stiff paste with _quantum sufficit_ of hot water, and then submit it to the action of strong fires. The oil thus obtained is exposed to a moderate heat, which, by coagulating the vegetable albumen of the seed, causes all impurities contained in the oil to form a cake at the bottom of the vessel employed, leaving the oil perfectly limpid and clear. POPPY OIL.--About 80 cwt. of poppy seed is imported annually into Hull, and small quantities come into other ports to be crushed into oil. The seeds of the poppy yield, by expression, 56 per cent. of a bland and very valuable oil, of a pale golden color, fluid to within ten degrees of the freezing point of water. It dries easily, is inodorous, and of an agreeable flavor like olive oi
PREV.   NEXT  
|<   718   719   720   721   722   723   724   725   726   727   728   729   730   731   732   733   734   735   736   737   738   739   740   741   742  
743   744   745   746   747   748   749   750   751   752   753   754   755   756   757   758   759   760   761   762   763   764   765   766   767   >>   >|  



Top keywords:

season

 

obtained

 
burning
 

ground

 
employed
 

imported

 

commercial

 

process

 

varnishes

 

medium


TOBACCO

 
superior
 

extraction

 

paints

 
common
 
powder
 
render
 

reduce

 

properties

 
British

Russia
 

tobacco

 

resident

 

discovery

 
fifteen
 
drying
 

importance

 

appears

 

possessing

 

peculiar


calculated
 

submit

 

crushed

 

expression

 

annually

 

quantities

 

valuable

 

degrees

 

inodorous

 
easily

freezing

 
golden
 
flavor
 

agreeable

 

exposed

 
moderate
 

strong

 
action
 

sufficit

 
coagulating