Reviews—A. J. Jukes-Browne—Building of British Isles. 473 
sion of volcanic products, which has been evolved since the Upper 
Miocene period assigned to the islands generally. A field for such 
inquiry seems to be offered by the present phase of action in the 
Furnas district, in the eastern centre of St. Michael’s, where existing 
activity is associated with some of the oldest formations in the series. 
The author has traced in that valley a series of beds of vegetable 
origin dating back from the most recent changes, immediately con- 
nected with the present boiling-spring area, to a period antecedent 
to the formation of the Furnas Valley itself. The intermediate in- 
tervals of repose are now represented by peaty beds and subaqueous 
vegetable deposits, interstratified with the successive lava streams, 
tuffs, and pumice beds of various dates, within and prior to the 
historical period. From the more recent of these, buried trunks and 
branches have been obtained which represent the intervals of recent 
eruptions; while in one of the older tuffs, underlying nearly the 
whole series at that portion of the islands, a tree (probably an Erica) 
has been found, presumably in situ, and offering possibilities of a 
subjacent soil for examination, which would be contemporaneous 
with the earliest vegetation of the island. 
IX.—Tue Voucanozs or tHe Two Sicruins. By Tempest ANDERSON, 
M.D., B.Se. 
HE author has recently visited the volcanoes of Naples, the 
Lipari Islands and Sicily, including Vesuvius, Stromboli, Vuleano 
and ANtna, and taken photographs of their craters and some of their 
lava streams, and other most important parts, in order to obtain a 
record of their present condition which may be available for com- 
parison in case of future eruptions. Some of these photographs were 
shown as projections on a screen by means of a lime-light lantern. 
Ist dat DVS 25 Jan WA Se 
—_——>_ -— 
Tue Buritpinc or THE British Istes: A Strupy In Geroacra- 
pHicaL Evouution. By A. J. Juxes-Browne, B.A., F.G.S8. 
Sm. 8vo. pp. 3835, with Maps and Woodcuts. (George Bell & 
Sons, 1888.) 
NLY a few years have elapsed since the late John Richard Green, 
combining physical geography, archeology, and history in the 
most happy manner, presented his fellow-countrymen with that 
admirable story in the development of their race, entitled ‘The 
Making of England.” We are now presented with an equally in- 
teresting volume of physical history, and somewhat wider geogra- 
phical scope, in which is told the story, how and during what 
geological periods the British Isles were built. Just as the modern 
English are a remarkable mixture of many races, so are the British 
Isles, as every geologist knows, a most remarkable epitome of the 
physical history of the Harth’s crust, our limited territory being in 
fact like Jacob’s coat in respect of the variety of the pieces which 
go to make it up. 
