on whose opportune aid he might surely count. The same breadth of
sympathy and generosity of sentiment has marked also his relations to
those more entirely dependent upon him. The workmen in his large
establishment all feel that they have in him a true and trustworthy
friend. He has always identified himself with their educational and
social well-being." We give here a list of some of the offices Mr.
Spottiswoode has held, and of the honors that have been bestowed upon
him: Treasurer of the British Association from 1861 to 1874, of the
Royal Institution from 1865 to 1873, and of the Royal Society from
1871 to 1878. In 1871 he succeeded Dr. Bence Jones as Honorary
Secretary to the Royal Institution. President of Section A, 1865; of
the British Association, 1878; of the London Mathematical Society,
1870 to 1872; of the Royal Society, 1879, which office he still holds.
Correspondent of the Institut (Académie des Sciences), March 27, 1876.
He is also LL.D. of the Universities of Cambridge, Dublin, and
Edinburgh, D.C.L. of Oxford, and F.R.A.S., F.R.G.S., F.R.S.E. In
addition to these honors he has many other literary and scientific
distinctions.--_Nature_.

* * * * *




ACETATE OF LIME.


I have made a series of experiments with regard to finding a reliable
method of estimating the acetic acid in commercial acetate of lime,
and find the following gives the best results: The sample is finely