148 Miscellaneous Intelligence. 
The author recognizes the igo oat of the manufacture of coal oils _ 
with the production in such in ing abundance of petroleum, destined 
to become a powerful pi Fs of | the artificial product, for economic use. — 
He states the number of oil wells in Western Pennsylvania and Ohio as 
not less than five hundred and fifty, opened or in process of boring, “a 
yielding by estimate not less than 25, 000 to 30,000 gallons daily. It is 
- instructive in this conneciion to recall the fact that the natural product 
ponies) which has been well known from the earliest dou of hu- 
istory, should Rees: remained comparatively useless and almost 
Magen until the modern art of coal oil distillation, has ened its 1 
dustrial value. It is quite possible that the future historian of the indus 
trial arts may look back on the coal oil distillation as only an episode in 
the history of the iis oan of the use of petroleum. 
e would not be understood however as giving to Dr. G.’s book an 
5.14, which he says “ on ays an a Spiporthite part in the pie ‘whi 
occur ’ during distillation.” It is time this foree ceased to be the poms — 
ver in matters of science ignorance lacks the courage 0 — 
“avow its weakness, When (as on p. 59) the author says, “ A number of 
Lewis, C,H, ,, or it may be * Ca ‘i at he meant to say ae 
Chemists will a curious to know the evi oiins nee on whic 
the “Homologous series obtained from oo — * nidad? ‘we : 
86) —— by enumeration nineteen consecuti ompounds 0 7 
assu type CyyiH,. Such vague paouatin will a as he sup 
“interest the professional chemist,” or extend the bounds of science — 
Like too many technical works printed in this country, this book abounds 
in typographical errors—such as the oo use of analine for aniline, 
Considering the author’s well-known position as plaintiff in the case 
Gesner vs. Cairnes—we esteem his ithe to the “ Albert Coal” to bein 
bad taste, since it gives only a oe. view of a case ont the: 
ond editio tio 
3. Gente Problems Srom the ¢ 
* Report of a case tried at Albert Circuit, 1852, before his fied t J ) 
and a eas ery Abraham Gesner vs. William Cairnes, copied a oe Tt 
Notes. . St. Jobo, N. B, 1853. _ Svo, pp. 167 
