THE WAY TO MAKE A LIST OF MEMBERS. 
437 
spectrum on rotating the analyzer, and vary in number and character according 
to the thickness of the selenite and its inclination to the plane of polarization. 
Upon introducing a second selenite plate into the path of the polarized ray, the 
spectrum is still crossed by dark bands, which, upon rotating the analyzer,, in¬ 
stead of being stationary throughout and merely appearing and.disappearing, 
move along the spectrum, the amount of motion and its direction depending 
upon the position of the second selenite, the direction being reversed through 
each quadrant of the revolution, and the motion ceasing at the completion of 
each quadrant. The above phenomena were accounted for by the author by 
supposing the ultimate action of the selenite to consist in the division of the 
polarized ray into two portions, each circularly polarized, the one in a direction 
opposite to that of the other. 
November 6th, 1865. “ On the Reduction of Chloride of Silver,” by Mr. J. 
Robbins. The author proposed, as an improvement upon.the methods ordinarily 
in use, to dissolve the chloride in ammonia, and having introduced some strips 
of copper, to apply heat. The whole of the silver is speedily deposited in the 
state of a fine metallic powder. 
“ On the Physics of Filtration,” by Dr. J. Attfield. Published in the Pharm. 
Journ. vol. vii. p. 355. . 
December 4tli, 1865. The Secretary exhibited a lecture experiment which 
had been described in the ‘ Chemical News ’ of Nov. 17th, by Krant. 
Specimens of Cod-Liver Extract, Pill Mass, and Dragees, or coated pills pre¬ 
pared therefrom, were shown. 
Mr. Tilden also exhibited specimens of two new Salts of Urea, the one Tar¬ 
trate of Urea and Potassium, the other Tartrate of Urea and Sodium. 
THE WAY TO MAKE A LIST OF MEMBERS. 
TO THE EDITOR OF THE PHARMACEUTICAL JOURNAL. 
Sir —The unreliable nature of the returns of Members of the so-called United 
Society, and of the number paraded before the Committee of the House of Com¬ 
mons last session, will, I have no doubt, now be made apparent throughout the 
length and breadth of the kingdom ; but so flagrant an instance of neglect m 
preparing the returns could scarcely again be met with as occurred in my ow n 
case. I therefore communicate it to your readers, as well as to the membeis of 
the Society in question through the medium of the ‘ Chemist and Druggist. 
Some four or five years since, Mr. Buott was in Bath, and, amongst others, 
called upon me to solicit a subscription of five shillings to the Society, which, as 
I then understood him, was chiefly established for benevolent purposes, and m 
no way to oppose the Pharmaceutical. At first I declined to subscribe, but. ns 
persistence, on calling a second time, induced me at last to give him the required 
five shillings. Some time after this, observing the action, of this Society and its 
Secretary to be very contrary to my wishes, I wrote declining further connection 
with it, and requested my name to be removed from.the list of members. Not¬ 
withstanding this and the non-payment of subscription for at least three years, 
on looking over the list lately published, I find my name is still retained. A 
circular has also been addressed to me, signed C. Buott, expressing his as¬ 
surance that mv desire to support the cause of the.Society is such, t oat it is on y 
needful for him to remind me that my subscription for 1865 remains unpaic, 
0^c etc* 
Now, Sir, considering that at least three other years also remained unpaid, 
the quiet obliviousness of this cunningly, conceived appeal is to my mind ex¬ 
ceedingly rich, and deserving a passing notice. 
