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T H E JOURNAL OF I N D U S T R I A L A N D ElVGIiVEERIiVG C H E J 4 I S T R Y .
power obtainable from these coking districts is estimated by Mr. Parker a t about 400,000 horsepower per hour for every day in the year. .-COAL EXPORTS I N 1911. The exports of coal from the United Staes during 1911, according to the United States Geological survey, were 17,432,753 long tons, valued a t $j2,593,274, compared with 13,805,866 long tons, valued a t $41,470,792, in 1910. The exports in 1911
Sept., 19 1 2
comprised 3,sj3,999 long tons of anthracite, valued a t $18,093,285, and 13,878,754 long tons of bituminous coal, valued a t $34,499,989. The exports of bituminous coal increased over 3,000,000 tons, or about 30 per cent. Anthracite exports increased about half a million tons. The imports of anthracite amounted in 1911 to only 2,463 long tons, valued a t $12,550, and those of bituminous coal decreased from 1,497,709 long tons, valued a t $3,97j,j61, in 1910, to 1,234,998 tons, valued a t 53,604,797.
1
BOOK REVIEWS CORRECTION. Review of Thorpe’s Dictionary of Applied Chemistry. Vol. I. THISJOURNAL, 4, 550. The price of $50.00 quoted in our review for the 5 volumes of the above work was a mistake. The price given by the publishers, Longmans, Green & Co., for the complete set of the second edition of this didionary is $67.50.
A Dictionary of Applied Chemistry.
Second Edition. By SIR
EDWARD THORPEand other eminent contributors. To be issued in five volumes. Revised and enlarged, Volume II., 786 pages. Price, when complete, $67.50 per set and $13.50 per volume. Longmans, Green & Co. 1912, London and New York. July, The issue of the first volume, reviewed in THISJOURNAL, p. 550, has been followed with gratifying promptness by Volume 11. This completes the treatment of subjects in alphabetical order up to and through Gold. A large number of new names has been added to the list of special contributors to this work and the same general policy of treating each subject by well known experts has been followed. A comparison with the individual subjects treated in the first edition shows careful revision and enlargement of many articles. For example, the treatment of Chlorine has been enlarged to include the electrolytic production of this now important industrial product and includes reference to the commerical production of liquid chlorine. New chapters have been added on Chromophores and Chromogens; Coke and its by-products and appliances used; Colloids; Condensers, laboratory; Corrosion of Iron; Crops; Desiccation and Drying; Diazo Compounds; Diffusion; Edible Oils and Fats; Egg; Esterification; Factis; Feeding Stuffs; Fertilizers and Manures; Fire Extinction and Prevention; Flame; Frits and Glazes. The additions of new material together with the revision and modernizing of the chapters carried over from the previous edition bring this volume up to the high standard set by Volume I in both material and workmanship M. C. WHITAKER. Portland Cement. By RICHARDK. MEADE. Second Edition. 8vo. Pages viii f 385; 100 illustrations. Easton, Pa.: Chemical Publishing Co. 191I . Price, $3.50. This excellent treatise, which was much sought after in the first edition, has been greatly improved in the second. The classification of cements is good, as is also the historical review, particularly t h a t dealing with the development of the industry in America. The theories of composition are prudently dealt with mostly in the language of the chief investigators, such as Le Chatelier, Newberry, Richardson, Tornebohm and Day and Shepherd, who are all given the full credit due them. The chapter on raw materials is one of the best on t h a t subject in any language. That 011 proportioning could well be cut down. The descriptions of the stages of manufacture are replete with detail. The review of the development of kilns, grinders and general mechanical appliances leaves nothing to be desired, at least as regards American practice. The author is strangely brief in speaking of the Universal Company’s manufacture from
I
slag and limestone. This is hardly fair, since such a n enormous proportion of our American output is now made thus. The latter half of the book is taken up with treatises on analysis and physical testing of cement. I n volume-constancy tests all are mentioned except high pressure steam tests. This work on Portland Cement will always remain a monument to the industry and ability of the author. It is a pity t h a t such flimsy paper should have been used in the embodiment of it. CHARLESF. MCKENNA. The Cement Industry in 191I. Published as a n advance chapter from Mineral Resources, 1911, and may be obtained free by application t o the Director, U. S. Geological Survey, Washington, D. C. The statistics of cement production in 1911, prepared by Ernest F. Rurchard, of the United States Geological Survey, show an increase over 1910 of only about a million and a half barrels. The increase in quantity is the smallest recorded within the last 13 years. The total quantity of Portland, natural, and puzzolan cements produced in the Cnited States during 1911 was 79,547,958 barrels, valued a t $66,705,136. The year 1911 showed a n increase of 2 . 2 7 per cent. in quantity, but a decrease of I .48 per cent. in value. The total production of Portland cement in the United States in 1911 as reported to the United States Geological Survey was 78,528,637 barrels, valued a t $66,248,817. This output represents a n increase in quantity of z .58 per cent. and a decrease in value of 2 .87 per cent. The United States has been divided into 11 subdivisions based on the grouping of plants in direct relation to the trade territory covered by each group. This grouping is also logical when the raw materials are considered. PRODUCTION
OF
PORTLAND CEMENT
COMMERCIAL DISTRICTS. Per Average factory Production cent. 1911. change, price Barrels. 1911. per bbl.
I N 1911 BY
Active District. plants. New Jersey and Eastern Pennsylvania (Lehigh District) . , 24 2 5 , 9 7 2 , 1 0 8 - 1 . 3 0 New York.. . . . . . . . . . . . . . . . . . . 7 3,314,217 0.54 Ohio and Western Pennsylvania. 9 6,756,313 f11.25 Michigan and Northeastern In13 4 , 5 1 9 , 7 2 6 - 0 . 1 1 diana. ..................... Kentucky and Southern Indiana 3 2,818,820 0 21 Illinois and Northwestern Indiana. ..................... 6 8 , 6 1 7 , 3 4 1 4- 2 88 Southeastern States (Maryland, Virginia, West Virginia, Tennessee, Georgia and Alabama) 11 4 , 0 4 9 , 0 6 3 f 3 1 . 8 5 7 6,067,449 6.02 Iowa and Missouri.. Great Plains States (Kansas, Oklahoma and Central Texas) 17 7 , 0 1 0 , 3 9 6 - 9 . 2 3 Rocky Mountain States (Colorado, Utah, Montana, Arizona and Western Texas). . . . . . . . -7 2,124,930 4.99 Pacific Coast States (California 11 7 , 2 7 8 , 2 7 4 f 1 3 . 9 8 and Washinpton). ...........
.
+
0.715 0,805 0.766
-
0,827 0.793
+
.........
-
Total..
....................
-
115 7 8 , 5 2 8 , 6 3 7
+
2.58
0.791
0.793 0.862 0.834
1.186 1.406 0.844
Lehigh district produces eighteen million dollars worth.
