PHARMACY AT THE DUBLIN EXHIBITION. 
K O 
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the allied sciences, or their own scientific interest, may not be considered out of 
place in these pages. 
The order here followed is of course the alphabetical: 
Bewley and Draper, 23, Mary Street, Dublin. Pharmaceutical Products, Mincial 
aters 
Bewley, Hamilton, and Co., Sackville Street, Dublin. Pharmaceutical Chemicals. 
Boileau and Boyd, Brule Street, Dublin. Pharmaceutical Chemicals. 
British Seaweed Company" (Limited), Whitecrook Chemical Works, Dulmuir, Dum¬ 
bartonshire, N. B. Series illustrating Stanford’s Patent Method of Treating Seaweed. 
Hirst, Brooke, and Tomlinson, Bishopsgate Street, Leeds. Acetic Acid and Acetates, 
Wood Naphtha, Artificial Essences, Chemical and Pharmaceutical Preparations. 
Johnson, Ma.tth.ey, and Co., Hatton ' Garden, London . Nitrate of. Silver, Caustic 
Sticks and Points, Platinum Apparatus, Magnesium, etc. . 
Johnson and Sons, Basing hall Street, London . Nitrate of Silvei, Sticks and xoints 
for Surgeons, Bismuth, Cadmium, Refined Antimony. 
Price’s Patent Candle Company, Belmont Works, Battersea, London. Pure Glyce¬ 
rine, Oils, Candle Material. 
The case of Bewley and Draper, 23, Mary Street,"Dublin (12), contains some 
preparations of the new Pharmacopoeia ; among others, Extraction Opii Liqui- 
dum and Extraction Belts Liquidum. Some non-officinal preparations aie also 
shown. There is Vinum Ferri , for example, rendered permanent by the addi¬ 
tion of citrate of ammonia, Liquor Taraxaci and Pepsine Wine. This firm also 
exhibits well-granulated Citrate of Magnesia, and a large display of Ah atml 
Waters, Soda Water, Ginger Beer, Lemonade , Ginger Ale, Seltzer Water, and 
Lithia Water. I may just'mention, in connection with this very favourite way 
of administering the carbonate of lithia, that an aerated water containing a 
lithium salt may be most easily distinguished from one which does not by the 
spectroscope, the intensity of the lithium ray is so great that it is easily recog¬ 
nised even in the presence of a great excess of sodium, and the scarlet band is at 
once produced if a single drop of lithia water be introduced on a platinum wne 
into the flame of the Bunsen burner. . . . . 
Bewley and Hamilton (40) exhibit a pretty extensive series of chemical pre¬ 
parations used in medicine, and some which are connected with photograp ly. 
The specimen of Iodide of Cadmium and the Bromide of the same metal are very 
o-ood. There is, however, a bottle labelled Prolophospliate of Iron, the contents 
of which are a green powder. This appears to be somewhat anomalous, as well- 
prepared phosphate of the protoxide of iron is blue. In the same case are some 
other iron preparations which, although nicely scaled, are very different to those 
usually met with in commerce. The Citrate of Iron and Quinine is a mai "_e 
example of this. Instead of the golden-coloured preparation which is usually 
seen now, we have here one which is dark red. This is however, precisely 
similar in appearance to the product of the formula of the Pharmacopoeia. The 
salt will do very well for dispensing purposes, but would be at once returned to 
any wholesale house which should venture to send it out. Is the golden colour 
due to the judicious use of potash ? How far does it depend on the state of oxi¬ 
dation of the iron? Why does not the British Pharmaceutical Conference 
elicit information on .these points, and how is it that the method ot producing 
one of the most used and most valuable of the scaled preparations of iron still 
remains a trade secret ? A glance at this series of preparations by Messrs 
Bewley and Hamilton is by no means umnstructive, as showing how difficult 
it is for one manufacturer to succeed in producing a great variety of presentable 
chemical compounds. Here, side by side, are some which are very good and 
really pretty ; others which are just the reverse. Alovne for example is dirty- 
brown and amorphous, and not m the least like the a oinc • • 
Smith, of Edinburgh, which is in well-defined yellow crystals. Lon Ahm 
