332 
BRITISH PHARMACEUTICAL CONFERENCE. 
Heaton and Sons, Birmingham. 
Specimens of the decimal copper coinage manufactured for Italy. The 
values accord with those of France, their weights, diameter, etc., being 
on the metric decimal system. 
Johnson and Sons, London. 
Series of platinum crucibles, platinum spatula for pocket, platinum-wire 
net for straining and electroplating operations; platinized copper bowl 
for counter or laboratory use ; small and cheap platinum spoons for blow¬ 
pipe experiments, especially useful for students ; various preparations of 
platinum ; silver crucibles, basins, and funnels. 
We would draw attention especially to the platinized copper bowl as a valuable 
addition to the dispensing counter or laboratory. We understand Messrs. Johnson 
and Son contemplate introducing to Pharmaceutists dispensing scale-pans, made on 
the same principle as the bowl, which, for their elegance, cleanliness, and con¬ 
venience, we expect will he generally adopted by dispensers. 
A rare specimen of iridescent metallic Bismuth is included in the series. 
Krohne and Sesemann, manufacturers, 241, Whitechapel Road., London. 
Large series of Dr. Bichardson’s anaesthetic apparatus, one with reservoir 
and double tube for major operations. Dr. Clark’s spray producer, and 
Beigel-Siegle’s inhalers for aqueous or other vapours, fitted with a variety 
of heating contrivances. 
The honour of originating this new method of treatment belongs to Sales-Girons, 
who, in 1858, exhibited his apparatus before the Academy of Paris, calling it “Pul- 
verisateur portatif des liquides niMicamenteux.” It was made under his direction 
by Charriere. This instrument, by means of compressed air, forced the medicated 
fluid through a tube with a very fine aperture against a metal plate, by which the 
stream of fluid was arrested, broken into spray, and inhaled by the patient. 
One portable form for the use of travellers is also exhibited. 
The whole apparatus represents a metal tube df inches long and inches in 
diameter. The upper part of the tube is occupied by the boiler, which is also pro¬ 
vided with a safety valve, the lower parts by a spirit lamp. The space between 
the lamp and the boiler contains, when the apparatus is not acting, the vessel for 
the fluid to be atomized. The whole apparatus, together with two of Bergson’s 
tubes, is contained in a morocco case not more than 7 inches long, inches wide, 
and 2 inches deep. The spray is produced in the following manner:—When steam 
is generated and discharged with considerable force through the horizontal tube, 
the vertical tube is exhausted; the medicine rises to fill the vacuum, and, reaching 
the capillary orifice at the top, is caught by the rushing column of steam and blown 
into the finest spray. 
Appliances made from the stem of Laminaria digitata, dilating bougies, 
lachrymal duct bougies and tents. Dr. G. Johnson’s laryngoscope, 
Morell Mackenzie’s laryngoscope, stem and ring pessaries in gutta¬ 
percha and vulcanite; also new instruments for applying powdered me¬ 
dicaments. 
Mathee, Hugh, London. 
Glass blow]3ipes, various; gas furnaces, some exhibiting the principle of 
aerated gas. 
It is still a point to be decided as to the exact amount of air requisite to ensure 
perfect combustion; many experiments have been practically worked out; at pre¬ 
sent, the question rests between economy of time and that of material, and when 
the problem has been solved, no slight revolution will occur in the laboratories of 
manufacturing pharmaceutists. 
Heating apparatus; lamps for microscopes, etc.; model of still. 
