Reviews—Neues Jahrbuch, ete. 567 
Major Ross on Pyrology (1880), are the two mentioned at the head 
of this notice. 
The “‘Blowpipe Analysis” of Landauer is treated entirely from 
a chemical point of view, in contradistinction to most works on the 
same subject, which give in great details the mineralogical rather 
than the chemical aspect. The first and second chapters are devoted 
to the various apparatus and re-agents used in Blowpipe analysis. 
The third chapter contains the special examination of certain elements 
-in combination; and the fourth chapter comprises the systematic 
examination of compound substances, divided into preliminary and 
complete examination,—a division perhaps unnecessary—together 
with Egleston’s method of examination of compound minerals, fol- 
lowed by a condensed view of Blowpipe re-actions, and a repro- 
duction of Plattner’s “Tabular View ” of the behaviour of minerals 
before the blowpipe. 
A plate of the spectra of the metals of the alkalies and alkaline 
earths, and an extended description of Bunsen’s flame re-actions, 
accompany this useful Blowpipe manual. 
Mr. Attwood’s book is somewhat different, both as to arrange- 
ment and contents, from many of the ordinary treatises on the 
blowpipe, being intended as a guide to Blowpipe Assaying. A brief 
introduction, containing tables of the elements according to their 
commercial and non-commercial value, is followed by a descrip- 
tion of the mouth blowpipe, re-agents, and necessary apparatus, 
among which we notice two portable forms of assay balances sug- 
gested by the author. The second part contains the qualitative 
determination of the principal alkalies, earths, and metals, the 
rarer substances being placed together at the end. The third part 
is devoted to the assay of the ten chief metals of commercial import- 
ance, Silver, Gold, Mercury, Copper, Lead, Bismuth, Tin, Iron, 
Nickel, and Cobalt, concluding with the assay of Coal. In the last part 
will be found a series of elaborate tables, with explanations of their 
use, of American and English values of Gold according to its fineness. 
This work, while it may be usefully consulted by the ordinary 
blowpipe analyst, is more especially intended for the mining pro- 
spector and blowpipe assayer ; the author’s long experience in mining 
researches having taught him the value of the blowpipe in the field 
where no other method of assaying is so readily available. J. M. 
TV.—Neves Janreuce Fiik MINERALOGIE, GEOLOGIE UND PALAEONTO- 
Logie. Commenced by K. C. von Leonmarp and H. G. Bronn ; 
continued by G. Leonuarp and H. B. Geinirz, etc. Nos. 1-9, for 
1878, with Woodcuts and 15 Plates. Nos. 1 and 2, for 1879, 
with Woodcuts and 4 Plates. 8vo. (EH. Koch, Stuttgart.) 
Neves Jaursucu, ero. Hdited by E. W. Benecke, C. Kern, and 
H. Rosensuscu, with the co-operation of several professional 
colleagues. Nos. 4-9, for 1879, with 5 Plates and several Wood- 
cuts. S8vo. (E. Koch, Stuttgart.) 
E have here before us the highly useful German periodical, the 
progress and value of which we have so often noticed, full of 
