. Journal. w carefully re-moved, and a sterilised pipette * introduced into thewater. At the same time, a tube of the sterilisedgelatine-peptone medium, which I melt by placing circuitous path it is true, with the outer air. Toobviate this, I soon placed the dishes in a shallowporcelain tray, such as is used in photography, andinto this tray a 2 per cent, solution of mercuricchloride was poured so as to form an antiseptic sealbetween the outer and inner air. More recently still,I have done away with the under dish altogether,and the tripod now simply stands in a common soup-plate, into which t
. Journal. w carefully re-moved, and a sterilised pipette * introduced into thewater. At the same time, a tube of the sterilisedgelatine-peptone medium, which I melt by placing circuitous path it is true, with the outer air. Toobviate this, I soon placed the dishes in a shallowporcelain tray, such as is used in photography, andinto this tray a 2 per cent, solution of mercuricchloride was poured so as to form an antiseptic sealbetween the outer and inner air. More recently still,I have done away with the under dish altogether,and the tripod now simply stands in a common soup-plate, into which the solution of mercuric chloride ispoured until the communication between the internaland external air is cut off, the mercuric chloride solu-tion thus serving the double purpose of an antisepticseal, and of maintaining the moisture of the internalair. By thus simplifying the apparatus, I have reducedthe cost from about fifteen shillings to fifteen pence, adifference which is of no little consequence, as in.
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectchemist, bookyear1882
