'Telegraph and travel. A narrative of the formation and development of telegraphic communication between England and India, under the orders of Her Majesty's Government, with incidental notices of the countries traversed by the lines.' [‎47] (766/782)

47
Jevons.— Works by W. Stanley Jevons, M.A., Professor of
Logic and Political Economy in Owens College, Manchester. (For
other Works by the same Author, see Educational and Philo
sophical Catalogues.)
THE COAL QUESTION : An Inquiry Concerning the Progress
of the Nation, and the Probable Exhaustion of our Coal Mines.
Second Edition, revised. 8vo. 10s. 6d.
" Day by day," the author says, "it becomes more evident that the
coal we happily possess in excelletit quality and abundance is the
mainspring op modern material civilization." Geologists and
other competent authorities have op late been hinting that the
supply of coal is by no means inexhaustible, and as it is of vast
importance to the country and the 'world generally to know the real
state of the case. Professor Jevons in this 'work has endeavoured to
solve the question as far as the data at command admit. He
believes that should the consumption multiply for rather more than
a century at its present rate, the average depth of our coal mines
would be so reduced that we could not long continue our present rate
of p rogress. "We have to make the momentous choice," he believes,
"between brief greatness and long-continued prosperity."—"The
question of our supply of coal," says the Pall Mall Gazette, " be
comes a question obviously of life or death. . , . The 'whole case is
stated with admirable clearness and cogency. ... We may regard
his statements as unanswered and practically established."
THE THEORY OF POLITICAL ECONOMY. 8vo. 9^.
In this 7i'ork Professor fez'ons endeavours to construct a theory of
Political Economy on a mathematical or quantitative basis, h.lievxng
that many of the commonly received theories in this science re per
niciously erroneous. The author here attempts to treat Economy
as the Calculus of Pleasure and Pain, and has sketched out, almost
irrespective of previous opinions, the form which the science, as it
seems to him, must ultimately take. The theory consists in apply'
ing the differential calculus to the familiar notions of Wealth,
Utility, Value, Demand, Supply, Capital, Interest, Labour, and
all the other notions belonging to the daily operations of industry.
As the complete theory of almost every other science involves the use
of that calculus, so, the author thinks, we cannot have a true theory