Chilogramme

"The distillation is continued by putting fire under the retort; and as soon as two chilogrammes have passed over, another ten chilogrammes of fresh alcohol at 40 degrees are introduced into the mixture, drop by drop, regulating as much as possible the quantity introduced, by that which passes into the receiver. This process is to be continued until there have been drawn off 15 chilogrammes of liquid, which will give, on being rectified in the water bath, 8 chilogrammes of pure ether, and some alcohol of an ethereal scent very proper to be made use of over again."