EEYIEWS. 
411 
state in wMcli masses of mispickel, sometimes over fifty pounds in weight, 
are found, he remarks, this peculiar mineral has always proved highly 
auriferous in this locality.” The surrounding auriferous slate is not less 
than twelve to fifteen inches at the surface, and will doubtless be found to 
increase very considerably with the depth.” "We have given a brief sketch 
of Mr. Heatherington’s little book, but intending visitants should read it for 
themselves. 
THE AUTHOR OF THE PRACTICAL ELECTRIC TELEGRAPH. =*• 
T his is a work written by the Rev. Thomas Fothergill Cooke to prove 
that his brother, Mr. William Fothergill Cooke, and not Professor 
Wheatstone, was the author of the practical electric telegraph. It is a painful 
matter, even under the most favourable of circumstances, to have to enter 
into the consideration of a controversy like the present one, and it is so in an 
especial degree when the plaintifi‘’s counsel is the plaintilf’s brother. So 
much personality and acrimony are apt to be carried into a discussion which 
can only be properly conducted by those who are absolutely and entirely 
dispassionate. For these reasons, no matter how just his cause, we regret 
to see the Rev. Mr. Cooke appearing as his brother’s champion. With the 
best and the honestest intentions, his mind must be less or more biassed 
toward one conclusion, whilst it ought to be a very tabula ram in point of 
foregone inferences. In the brochure under notice Mr. Cooke has set forth his 
brother’s claims in opposition to those of Professor Wheatstone with much 
force and too much bitterness. The evidence he has brought forward will 
be read with the deepest interest by all who care to see justice done to the 
great pioneers of civilisation. But on laying down the book, the inevitable 
conviction of the reader will be, the case is too strongly stated, although 
doubtless no facts have been strained to meet a particular view. Yet there 
is intrinsic proof of partiality. I cannot therefore form any judgment till 
I have heard the opposite side.” For ourselves, we must reserve our 
opinion. 
HE beauty of the aniline colours and their importance as a staple manu- 
facture render their history a matter of interest to everyone. This 
history has been previously given, from time to time, in chemical journals, 
and reports, in so far as its theoretical bearings are concerned. But never 
till now has any thoroughly systematic efibrt been made to give a clear 
"" Authorship of the Practical Electric Telegraph of Great Britain ; or, 
the Brunei award vindicated in Seven Letters, &c.” By the Rev. Thomas 
Fothergill Cooke, M.A. Simpkin & Marshall. 1868. 
t On Aniline and its Derivatives ; a Treatise on the Manufactiu’e of 
Aniline and Aniline Colours.” By M. Reimann, P.D. Revised and edited 
by W. Crookes, F.R.S. London: Longmans. 1868. 
THE ANILINE COLOURS.! 
F F 2 
