Scientific American Supplement, January 31, 1891

About this eBook

Author

Various

Title

Scientific American Supplement, No. 787, January 31, 1891

Credits

Produced by Victoria Woosley, Don Kretz, Juliet Sutherland, Charles Franks and the PG Distributed Proofreading Team

Language

English

LoC Class

T: Technology

Subject

Science -- Periodicals

Category

Text

eBook-No.

14009

Project Gutenberg

https://www.gutenberg.org/ebooks/14009

Release Date

November 10, 2004

Copyright

Public domain in the USA.

Contents

1. 1.SCIENTIFIC AMERICAN SUPPLEMENT NO. 787
2. 2.NEW YORK, January 31, 1891 — Scientific American Supplement. Vol. XXXI., No. 787. — Scientific American established 1845 — Scientific American Supplement, $5 a year. — Scientific American and Supplement, $7 a year.
3. 3.THE FRENCH IRONCLAD WAR SHIP COLBERT.
4. 4.STEAM ENGINE VALVES. 1 — By THOMAS HAWLEY. — RIDING CUT-OFF VALVES—PECULIARITIES AND MERITS OF THE DIFFERENT STYLES.
5. 5.FIRING POINTS OF VARIOUS EXPLOSIVES.
6. 6.STATION FOR TESTING AGRICULTURAL MACHINES.
7. 7.WATER SOFTENING AND PURIFYING APPARATUS.
8. 8.THE TRISECTION OF ANY ANGLE. — By FREDERIC R. HONEY, Ph.B., Yale University.
9. 9.TEST CARD HINTS. — By Dr. F. OGDEN STOUT.
10. 10.CHARLES GOODYEAR.
11. 11.THE ELECTROMAGNET. 1 — By Professor SILVANUS P. THOMPSON, D.Sc., B.A., M.I.E.E. — III. — RESEARCHES OF PROFESSOR HUGHES. — POSITION AND FORM OF ARMATURE. — POLE PIECES ON HORSESHOE MAGNETS. — CONTRAST BETWEEN ELECTROMAGNETS AND PERMANENT MAGNETS. — ELECTROMAGNETS FOR MAXIMUM TRACTION. — ELECTROMAGNETS FOR MAXIMUM RANGE OF ATTRACTION. — ELECTROMAGNETS OF MINIMUM WEIGHT.
12. 12.A USEFUL GUIDING PRINCIPLE. — ELECTROMAGNETS FOR USE WITH ALTERNATING CURRENTS. — ELECTROMAGNETS FOR QUICKEST ACTION. — CONNECTING COILS FOR QUICKEST ACTION. — BATTERY GROUPING FOR QUICKEST ACTION. — TIME CONSTANTS OF ELECTROMAGNETS. — SHORT CORES versus LONG CORES.
13. 13.ELECTRIC ERYGMASCOPE.
14. 14.A NEW ELECTRIC BALLISTIC TARGET.
15. 15.THE OUTLOOK FOR APPLIED ENTOMOLOGY. 1 — LEGISLATION. — PUBLICATION. — CO-OPERATION. — THE DEPARTMENT AND THE STATIONS. — STATUS OF OUR SOCIETY. — SUGGESTION AND COMMENT. — CONCLUSION.
16. 16.POTASH SALTS. 1 — EXPERIMENTS.
17. 17.THE EXPENSE MARGIN IN LIFE INSURANCE.
18. 18.THE FLOOD AT KARLSBAD.
19. 19.THEATRICAL WATER PLAYS.
20. 20.SCIENCE IN THE THEATER.
21. 21.NEWER PHYSIOLOGY AND PATHOLOGY. — By Prof. SAMUEL BELL, M.D.
22. 22.THE COMPOSITION OF KOCH'S LYMPH. — WHAT PROFESSOR KOCH SAYS IT IS, AND WHAT IT CAN DO. — (By Cable to the Medical Record .) — BERLIN, January 15, 1891.
23. 23.CAN WE SEPARATE ANIMALS FROM PLANTS? — By ANDREW WILSON.
24. 24.THE RECOVERY OF SILVER AND GOLD FROM PLATING AND GILDING SOLUTIONS. — A new Catalogue of Valuable Papers — THE SCIENTIFIC AMERICAN
25. 25.Architects and Builders Edition — Building Plans and Specifications. — Scientific American Supplement.
26. 26.Useful Engineering Books
27. 27.PATENTS.

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