THE AMERICAN PHARMACEUTICAL ASSOCIATION. 
339 
are to be dissolved by gentle beat in a pint of spirits of wine; to this is to be added a 
bleaching liquor made by dissolving carbonate of potash, and then impregnating it 
with chlorine gas till the solution becomes slightly coloured. Of this bleaching liquor 
add one or two ounces to the spirituous solution of lac, and stir the whole well together. 
Effervescence takes place. When this ceases add more of the bleaching liquor, and 
thus proceed till the colour of the mixture has become pale. A second bleaching 
liquor is now to be added, made by diluting muriatic acid with thrice its bulk of 
water, and dropping into it pulverized red lead till the last added portions do not 
become white. Of this acid bleaching liquor small quantities at a time are to be 
added to the half-bleached lac solution, allowing the effervescence which takes place 
on each addition to cease before a fresh portion is poured in. This is to bo continued 
until the lac, now white, separates from the liquor. The supernatant fluid is now to 
be poured away, the lac well washed in repeated waters, and Anally wrung as dry a 3 
possible in a cloth. The lac obtained by the foregoing process is to be dissolved in a 
pint of alcohol, more or less, according to the required strength of the varnish; and, 
after standing for some time in a gentle heat, the clear liquor—which is the varnish— 
is to be poured off from the sediment. When the processes of Tuning and Field came 
before the Society of Arts, the editor of the ‘Franklin Journal’ (Philadelphia) made 
known the process of Dr. Hare, in which he stated that “ all the objects sought for 
Avere perfectly attained, and left nothing to desire, save on the score of economy.” 
The following Avas Dr. Hare’s process :—Dissolve in an iron kettle one part of pearlask 
in about eight parts of water, add one part of seed or shellac, and heat the whole to 
ebullition. When the lac is dissolved, cool the solution, and impregnate it with 
chlorine till the lac is all precipitated. The precipitate is white, but its colour is 
deepened by washing and consolidation. Dissolve in alcohol. Lac bleached by this 
process yields a varnish as free from colour as any copal .—British Journal of Bkoio- 
graniiy. 
THE BRITISH PHARMACEUTICAL CONFERENCE AND THE AMERICAN 
PHARMACEUTICAL ASSOCIATION. 
At the first sitting of the Conference at Bath, September 14, the President stated that 
he had received a communication from the Secretary of the American Pharmaceutical 
Association, informing him that an address of salutation and gratulation had been agreed 
upon, an engrossed copy of which had been fonvarded to the present meeting. The 
President further explained that, owing to some accident, the said engrossed copy had 
not come to hand, but recommended that the extract from the volume of Proceedings, 
relating to the resolution, should be accepted in its place, Avhich Avas immediately 
agreed to, and the Secretaries Avere ordered to draw up the draft of a reply, to be sub¬ 
mitted for the approval of a future sitting. 
At'the final sitting of the Conference, on September 19th, it Avas determined that the 
following resolution should be fonvarded to the American Pharmaceutical Association, 
in reply to its address:— 
Resolved:— That the members of the British Pharmaceutical Conference have re¬ 
ceived Avith much satisfaction the friendly greetings of their brethren of the American 
Pharmaceutical Association. They appreciate these expressions of goodwill the more 
highly, from their being spontaneously offered at so early a stage in the existence of 
their own Society, and they see, in this circumstance, evidence that their American 
brethren are Avatchful observers of all endeavours for the advancement of pharmacy 
wherever made. The members of this Conference trust that such an example will not 
be without its influence in this country, and desire to record their feeling that the 
scientific labours of American pharmaceutists are worthy of being more extensively 
knoAvn in Great Britain than has been the case hitherto. 
“ This conference heartily reciprocates the expression of feelings of interest and good¬ 
will toAvards the American Pharmaceutical Association, and will gladly embrace all 
opportunities for communication with its members, several of whom are honourably 
known in England through their scientific researches.” 
