HUMULUS LUPULUS. 
83 
tain five grains of tannin, ten of extractive matter, eleven of bitter 
principle, twelve of wax, thirty-six of resin, and forty-six of ligniii, 
in about one hundred and twenty grains. Hops from whieh all the 
Lupulin had been separated, when acted upon by water or alcohol, 
yield an extract devoid of the virtues of the hops. 
Lupulin presents itself under the form of small, shining, yellowish 
grains, which cover the base of the scales of the hop. It is of a 
golden colour, pulverulent, and of an aromatic odour. M. Planche 
purifies Lupulin by the following method : " To separate the sand 
from Lupulin, put it into water ; shake it for a few minutes ; decant 
that which is held in solution by the water, and a dark coloured 
sand is deposited. Repeat the process several times, and spread 
the Lupulin, which is insoluble in water, on bibulous paper; let it 
drain, and then dry it in the air, neither exposed to the sun, nor 
to a temperature above 70° Fahr. It should be prepared yearly, 
and this cleansing process must be quickly conducted, or it will 
undergo a change." 
Medical Properties and Uses. Hops are narcotic, tonic, 
and diuretic ; their suporific powers are however uncertain. They 
are said to possess the power of procuring sleep in the delirium of 
fever, and in mania, when used as a pillow. We are told by 
Dr. Maton,* thai, " besides allaying pain and producing sleep, the 
preparations of hops reduce the frequency of the pulse, and increase 
its firmness in a very distinct manner. One drachm of the tincture, 
and four grains of the extract, given once in six hours, reduced the 
pulsation from ninety-six to sixty, in twenty-four hours." He also 
found the extract exceedingly etficacious in allaying the pain of 
articular rheumatism. Dr. Ives observes, " every accurate observer 
must acknowledge that they possess little merit, if administered 
according to the directions given in our pharmacopoeias. The 
quantity of proof spirit given in the tincture would produce stimu- 
lating effects, independent of any properties which it imbibes from 
the hops;t and although its action may be modified by their 
combined agency, so as in some measure to increase the cordial and 
invigorating influence of the alcohol, it is ditficult to conceive, that 
the tonic or narcotic virtues of the hop, should be sutficientiy con- 
centrated to produce much remedial benefit. It is otherwise with 
the pharmaceutical preparations of the Lupulin, which I have been 
* See Observations on tlie Hamulus Lupulus, &c. by A. Freake. 
t This observation we believe holds good with regard to many of our tinotares.— £rf. 
