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CHANGES OF ADDRESS. MR. CHARLES A. Brinley, The American Pulley Company, 4200 Wissahickon

Avenue, Philadelphia, Penna. MR. CLARENCE R. CLAGHORN, President, Durham Colliery Company, Durham,

Washington. MR. PARKE D. MASSEY, Pasto, Colombia, South America. MR. GEORGE A. ORROK, Lee, Mass. PROF. I. M. RAPP, Phænixville, R. F. D. No. 2, Penna. Mr. W. S. RUGG, care of Crescent Athletic Club, Shore Road, Brooklyn, N. Y. MR. W. F. THORNTON, Mechanicsburg, R. R. No. 2, Cumberland County,

Penna.

NECROLOGY. Colonel Caldwell K. Biddle was born at Rio de Janeiro, Brazil, in 1862, and died in Philadelphia on June 2, 1915.

His early education was secured in private schools in Philadelphia. Later he entered St. Paul's School, Concord, N. H., and in 1884 graduated from the Academic Department of the University of Pennsylvania, and in 1886 from the Law School. Soon after this he was admitted to the bar and began the practice of law.

Colonel Biddle took a great interest in military affairs, and for a number of years was a member of the First Troop, Philadelphia City Cavalry. Later he became connected with the Third Regiment, National Guard of Pennsylvania, as second lieutenant of Company H, and during the Spanish War served in Cuba as Captain of the company. In 1900 he was appointed Regimental Inspector of Rifle Practice, in 1901 he became Second Major, and in 1911 he was elected Colonel of the Regiment.

Colonel Biddle was a member of the University Club and other organizations.

He became a life member of The Franklin Institute in 1900.

Lewis Metzler Clement was born at Niagara, Ontario, Canada, August 12, 1837, and died at Hayward, Cal., October 29, 1914.

He was employed in the construction of the Montreal Water Works and was engineer in charge of construction of the Welland Railway. He was also engaged in the construction of the Port Dover and Hamilton Railway, and later was employed by the Ohio and Mississippi Railroad.

In the spring of 1862 he was engaged by the Central Pacific Railroad as assistant chief engineer. At this time the railroad was being built from Sacramento to Ogden, Utah, and Mr. Clement was in charge of the construction of the line over the Sierra Nevada Mountains. He put in operation the first electric patrol system for railroads, which covered a distance of fifty miles, through snow sheds and tunnels.

He designed the first emigrant sleeping car used by the railroads of to-day, and introduced many notable improvements in the design and construction of steam, cable, and electric railways.

Mr. Clement was appointed chief engineer of the Atlantic and Pacific Railroad in 1881, and afterwards chief engineer of the Pacific Improvement Company of California, in the construction of cable and electric railways. He was also consulting engineer of the Southern Pacific Company and the Leland Stanford, Jr., University.

Mr. Clement was elected a member of The Franklin Institute in 1899. Stuart Wood, 1620 Locust Street, Philadelphia.

LIBRARY NOTES.

PURCHASES. Benoit, J. R., AND GUILLAUME, C. E.-La mesure rapide des bases geodesiques.

1908. Cox, JOHN.-Beyond the Atom. 1913. ELLIOTT, CHARLES E.-Engineering for Land Drainage. 1913. MARSHALL, ARTHUR.—Explosives, Their Manufacture, Properties, Tests, and

History, 1915. Mills, W. T.-American School Building Standards. 1915. Morse, WILLIAM F.-Collection and Disposal of Municipal Waste. 1908. MYERS, D. F.-Preventing Losses in Factory Power Plants. 1915. National Association of Cement Users. Proceedings, vol. 8. 1912. PHILIP, JAMES C.-Physical Chemistry; its Bearing on Biology and Medicine.

1913. RIDEAL, SAMUEL AND E. K.—Water Supplies: Their Purification, Filtration,

and Sterilization. 1915. STECHER, G. E.—Cork: its Origin and Industrial Uses. 1914. THOMPSON, S. P.-Rose of the Winds :-Origin and Development of the Com

pass Card. 1913. TOMKINS, ERNEST.-Science of Knitting. 1914. WEIMARN, P. P. von.—Zür lehre von den Zuständen der Materie. 2 volumes.

1914. West Virginia Geological Survey.—Logan and Mingo Counties—Report and

Maps. 2 volumes.' 1914. Wiley, H. W.—Principles and Practice of Agricultural Analysis. Part 2, Fertilizers and Insecticides. 1908.

GIFTS. Beghin, A., Regle a Calculus, Modele Special. Paris, 1899. (From Mr.

L. E. Picolet.) Boston Transit Commission, Twentieth Annual Report. Boston, Mass., 1914.

(From the Commission.) British Journal Photographic Almanac and Photographer's Daily Companion.

London, 1915. (From Mr. L. E. Picolet.) Canada Department of Mines, Memoir 30, The Basins of Nelson and Churchill

Rivers, 1913; Memoir 38, North American Cordillera, part i, 1912; Memoir 56, Geology of Franklin Mining Camp, British Columbia; Memoir 59, Coal Fields and Coal Resources of Canada. Ottawa, 1915. (From the Department.)

Canada Department of Trade and Commerce, Monthly Report, February.

Ottawa, 1915. (From the Department.) Canadian Society of Civil Engineers, Transactions, vol. xxviii, part ii, 1914.

Montreal, 1915. (From the Society.) Catholic University of America, Year-Book. Washington, D. C., 1915. (From

the University.) College of William and Mary, Catalogue, 1914-1915. Williamsburg, Va., no

date. (From the College.) Cullman Wheel Company, Catalogue No. 10 of Sprockets. Chicago, Ill., no

date. (From the Company.) Dodge Sales and Engineering Company, Catalogue of Gears. Mishawaka, Ind.,

no date. (From the Company.) Dominion Bridge Company, Ltd., Catalogue S-1 of Bridges and Steel Struct

ures. Montreal, Can., 1915. (From the Company.) Duplex Hanger Company, Inc., Catalogue of Hangers. Cleveland, Ohio, no

date. (From the Company.) Eynon-Evans Manufacturing Company, Catalogue No. 10 of Hydraulic and

Special Machinery. Philadelphia, no date. (From the Company.) General Fireproofing Company, The Fireproofing Hand Book. Youngstown,

Ohio, 1915. (From the Company.) Georgia Geological Survey, Bulletin No. 30, A Preliminary Report on the

Feldspar and Mica Deposits of Georgia. Atlanta, 1915. (From the

Survey.) Golden-Anderson Valve Specialty Company, Catalogue No. 18 of Steam and

Water Specialties. Pittsburgh, Pa., 1915. (From the Company.) Illinois State Geological Survey, Bulletin of Illinois Coal Mining Investiga

tions. Urbana, 1915. (From the Survey.) Institution of Engineers and Shipbuilders in Scotland, Transactions, vol.

lvii. Glasgow, 1914. (From the Institution.) Instituto y Observatorio de Marina de San Fernando, Almanaque Nautico,

1916. San Fernando, Spain, 1914. (From the Instituto.) Jablonski, E., Cours D'Arithmetique. Paris, 1888. (From Mr. L. E.

Picolet.) Keeler, E. Company, Catalogues of Return Tubular Boilers and Water Tube

Boilers. Williamsport, Pa., no date. (From the Company.) Link-Belt Company, Data Book No. 125. Chicago, Ill., 1915. (From the

Company.) Liverpool Engineering Society, Transactions, vol. xxxv. Liverpool, England,

1914. (From the Society.) Locke Regulator Company, Catalogue N of Regulating Devices. Salem, Mass.,

no date. (From the Company.) Louisiana State University, Catalogue. Baton Rogue, 1915. (From the Uni

versity.) Manchester Steam Users' Association, Thirty-First Annual Report upon the

Working of the Boiler Explosions Act, June 1912-June, 1913. Manchester,

England, no date. (From the Chief Engineer.) Mead-Morrison Manufacturing Company, Catalogue “S” 2 of Steam Hoists.

Boston, no date. (From the Company.)

Missouri Botanical Garden, Annals, vol. ii, Nos. I and 2. St. Louis, Mo.,

1915. (From the Board of Trustees.) Morse Twist Drill and Machine Company, Catalogue of Drills, Reamers, Dies,

Machinery and Machinists' Tools. New Bedford, Mass., 1915. (From the

Company.)
National Commercial Gas Association, Lessons on the Utilization of Gas

Appliances, I to X, part iii, Practical Educational Courses; Elementary
Principles of Combustion and Utilization of Energy, part i; Units of
Light and Illumination and Principles of Light Distribution, part ii;
Tables and Glossary, part iii; The Gas Equipment of the Home. New

York, no date. (From Mr. Louis Stotz, Secretary.)
New Jersey Geological Survey, Bulletin 13, Indian Habitations in Sussex

County, New Jersey; Bulletin 14, The Geology of New Jersey. Union

Hill, N. J., 1915. (From the Survey.)
New York Department of Efficiency and Economy, Annual Report. Albany,

1915. (From Prof. Arthur H. Blanchard.)
North Western Expanded Metal Company, Designing Data for Reinforced

Concrete. Chicago, 1914. (From the Company.)
Oberlin College, Bulletin and Annual Catalogue. Oberlin, Ohio, 1915. (From

the College.)
Ohio Agricultural Experiment Station, Technical Bulletin No. 5, Phosphorus

Compounds in Animal Metabolism. Wooster, 1914. (From the Station.) Ohio Locomotive Crane Company, Catalogue of Locomotive Cranes. Bucyrus,

no date. (From the Company.) Ontario Department of Agriculture, Forty-fifth Annual Report of the Ento

mological Society, 1914. Toronto, 1915. (From the Department.) Oregon State Immigration Commission, Oregon Almanac, 1915. Salem, 1914.

(From the Portland Chamber of Commerce.) Pennsylvania Department of Forestry, Report, 1912-1913. Harrisburg, 1915.

(From the State Librarian.)
Pennsylvania State College, Report, 1912–1913. Harrisburg, 1914. (From the

State Librarian.)
Pennsylvania Topographic and Geologic Survey Commission, Report No. 7.

Harrisburg, 1913. (From the State Librarian.)
Philadelphia City Trusts, Forty-fifth Annual Report of Board of Directors,

1914. Philadelphia, 1915. (From the Board.)
Philadelphia Department of Public Works, Report on the Collection and

Treatment of the Sewage of the City of Philadelphia. Philadelphia, 1914.

(From Mr. George S. Webster.)
Philadelphia Electric Company, Current News, vols. 7-8 and 9-10, 1913-1914.

Philadelphia, no date. (From the Company.)
Pridmore, Henry E., Catalogue No. 8 of Molding Machines. Chicago, Ill., no

date. (From Mr. H. E. Pridmore.)
Society for the Promotion of Engineering Education, Proceedings, vol. xxii,

1914. Pittsburgh, 1915. (From Dr. R. B. Owens.)
Tokyo Imperial University, Calendar, 1913-14. Tokyo, no date. (From the

University.)
United States War Department, Report of the Tests of Metals and Other

Materials, 1914, Washington, 1915. (From the Department.)

University of Michigan, Catalogue. Ann Arbor, 1915. (From the University.) University of Oklahoma, General Catalogue. Norman, 1915. (From the

University.) Victorian Institute of Engineers, Proceedings, vol. xiii. Melbourne, 1913.

(From the Society.) Vulcan Engineering Sales Company, Catalogue No. 3 of Riveters. Chicago,

Ill., 1915. (From the Company.) Watson-Stillman Company, Catalogue No. 92 of Forcing Presses. New York,

no date. (From the Company.) Wesco Supply Company, Catalogue No. 200 of Electrical Goods. St. Louis,

no date. (From the Company.) Western Australia Geological Survey, Bulletin Nos. 56, 57, 59, and 61. Perth,

1914. (From the Survey.) Western Society of Engineers. Year Book. Chicago, Ill., 1915. (From the

Society.)

BOOK NOTICES. THE CHEMISTRY OF THE CYANOGEN COMPOUNDS AND THEIR MANUFACTURE AND

ESTIMATION. By Herbert E. Williams. Philadelphia, P. Blakiston's Son & Co., 1915. Pages i-viii, 406 and Indexes. 8vo. Price, $3.50.

The introductory paragraphs of this work give a short history of the development of our knowledge of an interesting and important group of substances which were long considered as one of the connecting links between organic and inorganic compounds, at least so far as descriptive chemistry is concerned. From this historical summary we learn that the first step was the production of Prussian blue by Driesbach in 1704, and that Macquer, about a half century later, obtained potassium ferrocyanide. An interesting sidelight is thrown on the state of chemistry at that time by the fact that Macquer called the substance“phlogisticated alkali.” Scheele obtained hydrogen cyanide in 1782; Gay Lussac prepared free cyanogen in 1815.

The work is divided into three sections, devoted, respectively, to: Chemistry of the cyanogen compounds, manufacture and applications of cyanogen compounds, analysis of cyanogen compounds. Many of the cyanides, ferroand ferricyanides are described, and much information given concerning other complicated derivatives (cobalti- and platinocyanides), thiocyanates and fulminates. To the chemist who has not followed closely the development of this department, the references to the carbonylferrocyanides will be somewhat astonishing. Ammonium carbonylferrocyanide, for example, is (NH),Fe (CN):(CO)3H,0, and when we come to the diethylaniline and dimethylaniline derivatives the complication is great. It is interesting to write the formula of the ammonium compound empirically, and note how incomprehensble it is: CHıxNFeOn.

A highly commendable feature is the correctness of nomenclature. It is up to date. Such solecisms as “cyanate of potash" and "potassium sulphocyanide,” which are so common in present-day works of British provenance, are not found in this work. It is a valuable contribution to an important and complex department of applied chemistry.

HENRY LEFFMANN. VOL. CLXXX, No. 1075–9

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