240 BRITISH PHARMACEUTICAL CONFERENCE. 
Coleman, W. J., and Co., 13, St. Mary-at-Hill, London, and Bury St. Ed¬ 
mund’s. 
A large collection of drugs and chemicals manufactured by Messrs. Gehe 
and Co., Dresden. The collection includes a very large specimen ot 
valerianate of quinine in magnificent crystals ; beautiful specimens of the 
sulphates of cadmium, of cobalt and of manganese, of permanganate ot 
potash in large quantities and finely crystallized; caffeine obtained from 
tea, a large specimen most beautifully crystallized; subnitrate of bismuth; 
acetate and muriate of morphia ; tannic acid; acetate and nitrate of ura¬ 
nium; cubebine. Essential oils of mustard, patchouly, carraway, fennel 
and sandal wood, also croton oil. 
Extracts of opium, aloes, cinchona and nux vomica. These were in a novel 
form, the extracts being completely dry and in small regular pieces about 
an eighth of an inch in diameter. Extract of malt also in small pieces, 
prepared according to Liebig’s formula. Extract of alkanet as a thick 
semifluid substance, used for colouring oil, etc. 
Cut roots, as those of gentian and sarsaparilla, the latter in very even trans¬ 
verse slices of about of an inch in thickness. Decorticated roots of 
calamus aromaticus, marshmallow, and orris. Powdered ipecacuanha in 
two forms, one powder being that of the entire root, the other consisting 
of the cortical portion only. Pure gutta-percha prepared by solution in 
chloroform, bleaching and rolling into sticks, and used chiefly for stop¬ 
ping teeth. 
Liebig’s extract of meat, manufactured in Australia. Various preparations 
of it, as biscuits, lozenges, soups, jelly, and extract "of meat, coffee, and 
cocoa. 
Mustard seeds and mustard of various kinds manufactured therefrom. 
Bussian and Brazilian isinglass, both in the crude state and cut for use. 
Doulton and Co., London. 
Stoneware stills, receivers, percolators, evaporating dishes, funnels, etc., 
adapted for chemical and pharmaceutical operations. Crucibles of vari¬ 
ous kinds, earthen furnace. 
Evans, Lescher, and Evans, London and Liverpool. 
Patent valvular tap for filling accurately measured doses of medicine into 
membranous envelopes or capsules of Savaresse. 
The operation of this little invention is very simple. The lever of a three-way 
tap opens a communication between the reservoir and a hollow cylinder of re¬ 
quired capacity in which a plunger is made to work airtight; by means of a con¬ 
necting link, the continued upward action of the lever elevates the plunger, draw¬ 
ing with it the fluid to be measured: the height to which this plunger can be 
raised is determined by a set screw, and this regulates the quantity to be mea¬ 
sured. 
The downward action of the lever first opens a way between the cylinder and 
the exit, and its continued action depresses the plunger, forcing out the measured 
quantity ; the continued upward and downward motion of the lever thus draw¬ 
ing at each action accurately uniform quantities. 
The invention is applicable to a variety of uses. 
Ewen, James, 17, Garlick Hill, London. 
Clarified lard, clarified marrow, and clarified suet; benzoated lard; purified 
olive oil, purified trotter oil, and benzoated trotter oil. 
Groves, T. B., Weymouth. 
Cynanchum bitter, cathartate of ammonia, senna resin and extractive; 
liquor senna (see Paper). Granular effervescing phosphate of potash, 
ol. sambuci; liquor opii sedativus. 
