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XXIII. Notices respecting New Books. 
Memoirs of the Wernerian Natural History Society. Vol. U1. 
Part I]. For the years 1814, 1815, 1816. 
Tus Part contains :— I. On the Greenland or Polar Ice ; by 
W. Scoresby jun. Esq. M.W.S.—II. On the Mineralogy of the 
Read Head, in Angus Shire ; by the Rev. John Fleming, D. D. 
F.R.S.E.—IIL. Description and Analysis of a Specimen of Na- 
tive Jron found at Leadhills ; by Mr. H. M. Da Costa, M.W.S. 
—IV. Mineralogical Observations in Galloway; by Df. Grierson. 
—V. Lithological Observations on the Vicinity of Lochlomond; 
by Dr. Macnight.—VI. Description of Ravensheugh; by the 
same.—VII. Hints regarding the Coincidence which takes place 
in the Pressure of the Atmosphere at different Latitudes and at 
nearly the same Time; by the Right Hon. Lord Gray, F.R.S. 
Lond. and Edin. &c.—VIII. An Account of several new and rare 
Species of Fishes taken on the South Coast of Devonshire, with 
some Remarks upon some others of more common Occurrence 3 
by George Montagu. — IX. Observations upon the Alveus or 
General Bed of the German Ocean and British Channel ; by Ro- 
bert Stevenson, Esq. Civil Engineer.—X. Geological Remarks 
on the Cartlone Craig ; by Dr. Macnight.—XI. Account of the 
Irish Testacea ; by Thomas Brown, Esq. F.L.S. M.W.S. M.K.S. 
—XII. Remarks respecting the Causes of Organization; by Dr. 
Barclay.—XIII. On the Genera and Species of Eproboscideous 
Insects ; hy William Elford Leach, Esq.— XIV. On the Arrange- 
ment of Cistrideous Insects ; by the same.—XV. Observations — 
on some Species of the Genus Falco of Linnzus ; by James Wil- 
son, Esqg.—XVI. On the Geognosy of the Lothians ; by Profes- 
sor Jameson. ee 
Dr. Bostock, late of Liverpool, now of London, has published 
an account of the-Science of Galvanism. He gives a preference to 
the chemical hypothesis, aud draws the following conclusions :— 
‘“‘ The chemical differs very essentially from the electrical hy- 
pothesis with respect to the supposed state of the contiguous me- 
tals: the electrical supposes that they can have different states 
of electricity while they are in contact ; the chemical takes it for 
granted, that, while they are in contact, their electrical states must 
he similar. The chemical hypothesis satisfactorily explains all the 
facts that have been observed, respecting the necessity of oxygen 
for the action of the apparatus; it explains the reasonwhy the me- 
tals must differ in their degree of oxidability, and why the fluid 
must be one that will act differently upon the two metals. The 
facts that have been noticed respecting the different effects of the 
interposed fluids may be explained by referring to three cireum- 
stances, 
Le eee 
