Page images
PDF
EPUB

INDEX TO ADVERTISERS

PROFESSIONAL CARDS, PAGES XXVI AND XXVII

[merged small][ocr errors][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][ocr errors][merged small][merged small][merged small][merged small][merged small][ocr errors][merged small][merged small][merged small][merged small][merged small][ocr errors][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][ocr errors][merged small][merged small][merged small][ocr errors][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][ocr errors]

xxiv

Green-Starr Engineering Co. . . . xxiv
Hamlin & Morrison, Analytical
Chemists, Philadelphia . .
Howson & Howson, Patent So-
licitors, Phila., New York and

Washington. Second cover page

...

Weber, F. & Co., Draughting and
Engineering Instruments
Weston Electrical Instrument Co.,
Ammeters and Voltmeters.
Wiedersheim & Fairbanks, Patents
Wood, Alan, Iron and Steel Co.

Your courtesy in mentioning the Journal will be appreciated

[merged small][ocr errors][ocr errors]

. XXV

vi

NEW SCIENTIFIC BOOKS

A Text-book of Inorganic Chemistry

Volume I

Part I.-An Introduction to Modern Inorganic Chemistry By J. NEWTON FRIEND, H. E. V. LITTLE and W. E. S. TURNER Part II.-The Inert Gases

By H. VINCENT A. BRISCOE

With frontispiece, plate and 88 other illustrations. 385 pages. Octavo. Cloth. $3.00 net.

This is the first volume in a new series of text-books dealing comprehensively with each branch of chemistry. While the books are not absolutely exhaustive, which would make them bulky and expensive, they give in detail the most important parts of each subject, and supplement lack of detail by copious references to the best literature. Every care has been taken to check the accuracy of the references, which will make the series a most valuable one.

Refuse Disposal

By ERNEST R. MATTHEWS

With 8 detailed drawings and 91 illustrations in the text. 160 pages. 8vo. Cloth. $2.00 net.

A practical manual for municipal engineers, members of local authorities, etc. It sets forth modern methods of collection and disposal, embodying the latest practice, and shows what is being done all over the world along this line.

CONTENTS.-Collection of House Refuse, Unsatisfactory Methods of Disposal. Conversion into Manure. Destruction by Burning. Types of Destructors. The Meldrum Destructor. The Heenan Destructor. Other Types of Destructors. Dawson-Manfield Destructor. Installation for Villages, Hospitals, etc. Use for the Clinker. Chimney Construction. Steel Plate Chimney Construction. Principles of Vacuum Cleaning. Index.

A Manual of Oils, Resins and Paints

By HARRY INGLE, D.Sc., Ph.D., F.I.C.

With many diagrams, figures and tables. 130 pages. 12mo. Cloth, $1.25 net. A work for students and those analysts and works chemists who have had little or no experience with oils in practice, but are familiar with general chemistry. In the general analytical portion several new features are noticed and obsolete tests omitted. In the technical portion the necessary tests have been stated and as far as possible the conclusions of practical value which should be drawn from given.

CONTENTS. Introduction to Chemistry of Oils, Gums, etc. Physical Tests. Chemical Tests. Qualitative Tests for Oils. Classification of Oils. Systematic Examination of Oils, Fats and Waxes. Technological Analysis. Tables of Oil Constants. Index.

J. B. LIPPINCOTT COMPANY PHILADELPHIA

Your courtesy in mentioning the Journal will be appreciated

[graphic][subsumed][subsumed][subsumed][subsumed][subsumed][subsumed][subsumed][subsumed][merged small]

THE MOORE & WHITE CO.

PHILADELPHIA, PA., U. S. A.

Paper-making Machinery Builders of Friction Clutch Pulleys Variable Speed Changes

THE ALUMNI ASSOCIATION OF THE FRANKLIN INSTITUTE is always glad to refer inquiries for engineers, draftsmen, etc., to its members.

Since its organization, the association has received many such requests and several past graduates of The Franklin Institute School of Mechanic Arts have been recommended to fill positions.

Library of The Franklin Institute

A most complete scientific and technical collection
113,000 titles

Electricity, chemistry, geology, mining and metallurgy, mechanics and engineering, physics, etc.

Bound files of the leading technical magazines of all countries. Complete sets of the publications of the principal scientific societies of the world.

United States and foreign patent reports.

Translations
References Verified
Articles Copied

The Library is prepared to undertake a limited amount of work in connection with the verification

of references, translations and copying from English,
German, and French books and periodicals. A mod-
erate charge will be made to cover expense.

Inquiries relating to the Institute and applications for membership
should be addressed to the

SECRETARY OF THE INSTITUTE

13, 15, 17 South 7th Street

Your courtesy in mentioning the Journal will be appreciated

WILLIAM SELLERS & CO.

INCORPORATED

PHILADELPHIA, PA.

Modern Machine Tools

TOOL-GRINDING MACHINES
DRILL-GRINDING MACHINES

High-Speed Traveling Cranes, Swing Cranes, &c.

BORING AND TURNING MILLS DRILLING AND BORING MACHINES

Improved Injectors for Boilers.

SHAFTS, HANGERS, COUPLINGS, PULLEYS, ETC.

:: FOR TRANSMITTING POWER

Your courtesy in mentioning the Journal will be appreciated

« ՆախորդըՇարունակել »