This historic book may have numerous typos and missing text.
Purchasers can download a free scanned copy of the original book
(without typos) from the publisher. Not indexed. Not
illustrated.1878 Excerpt: ... insects of every description. We have
here a long list of such tormentors, and one of the party found
them too numerous and too indefatigable to be endured, and so
returned home. It was evidently with some satisfaction that the
fate was watched of swarms of the winged saiiba ant. These were
quitting their homes to form other colonies at a distance, and the
females were distended with eggs. Their journey, however, was very
short and very tragically concluded, for flights of gulls overhead
were making a hearty meal of them as each flew upward, and as long
as daylight lasted it was not probable that a single ant, male or
female, escaped. Mr. Brown does not favour his readers with a very
full account of the scientific results of their expedition, but he
certainly gives them a great deal of useful information in addition
to the "amusing incidents, interesting characters, and mild
adventures," which he promised in his Preface. II.--PETROLEUM, ITS
HISTORY AND USES. Petroleum and the kindred substances, of which I
shall treat in the present essay, are binary compounds of carbon
and hydrogen. They are expressed by the chemical formula Cn H2n+2,
and therefore are closely allied to the marsh gas C H4, which under
the form of miasma, is so fatal to human life. Amongst them may be
classed those familiar to us under the names of Petroleum, Naphtha,
Benzine, Paraffin, Bitumen, mineral pitch, mineral essences, oils
extracted from coal and schist, besides many others. Petroleum in
its different forms is the most widely known of these natural
products. It is of a highly complex nature, and many hundreds of
hydro-carburets, all perfectly distinct from one another, are alike
capable of being extracted by the process of distillation from the
raw petroleum. Inquiry with regard t...
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|Country of origin:
||246 x 189 x 11mm (L x W x T)
||Paperback - Trade
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