Sivut kuvina
PDF
ePub
[blocks in formation]

1. HAYES, H. C.- An Investigation of the Errors in Cooling Curves and Methods for Avoiding these Errors; Also a New Form of Crucible. pp. 1-22. 6 pls.

[blocks in formation]

2. WILLSON, R. W.- Determination of the Altitude of Aeroplanes.

2 pls. May, 1911. 55c.

3. DALY, R. A.- The Nature of Volcanic Action.

1911. $1.15.

pp. 23-43.

pp. 45-122. 5 pls. June,

4. WARREN, C. H., and PALACHE, C.- The Pegmatites of the Riebeckite-Aegirite Granite of Quincy, Mass., U. S. A.; Their Structure, Minerals, and Origin. pp. 123-168. 3 pls. July, 1911. 90c.

5. RICHARDS, T. W., and KELLEY, G. L.- The Transition Temperatures of Sodium Chromate as Convenient Fixed Points in Thermometry. July,

1911. 35c.

pp. 169-188.

6. ROBINSON, B. L.- (I.) On the Classification of Certain Eupatoricae; (II.) Revision of the Genus Barroetea, (III.) On some hitherto undescribed or misplaced Compositae. pp. 189-216. July, 1911. 35c.

7. ESTERLY, C. O.- Calanoid Copepoda from the Bermuda Islands. 4 pls. July, 1911. 35c.

pp. 217-226.

8. BABBITT, L. A.- The Von Waltenhofen Phenomenon in Soft Iron Rings. pp. 227-264. 1 pl. November, 1911. 70c.

9. CHAFFEE, E. L.- A New Method of Impact Excitation of Undamped Oscillations and their Analysis by means of Braun Tube Oscillographs. 312. 7 pls. November, 1911. $1.10.

pp. 265

10. WEBSTER, A. G.- The Wave Potential of a Circular Line of Sources. pp. 313318. December, 1911. 15c.

11. BRIDGMAN, P. W.- The Measurement of Hydrostatic Pressures up to 20,000 Kilograms per Square Centimeter. pp. 319-343. December, 1911. 40c. 12. BRIDGMAN, P. W.- Mercury, Liquid and Solid, under Pressure. pp. 345-438. 1 pl. December, 1911. $1.20.

13. BRIDGMAN, P. W.- Water, in the Liquid and Five Solid Forms, under Pressure. pp. 439-558. 3 pls. January, 1912. $1.60.

14. WEBSTER, D. L.-On an Electromagnetic Theory of Gravitation. pp. 559-581. January, 1912. 40c.

15. BAXTER, G. P., MOORE, C. J., and BOYLSTON, A. C.— A Revision of the Atomic Weight of Phosphorus. pp. 583-605. January, 1912. 40c.

16. SMALLWOOD, W. M.- Polycerella Zoobotryon. pp. 607-630. March, 1912.

45c.

17. PEIRCE, B. O. The Anomalous Magnetization of Iron and Steel.

pp. 631-670. March, 1912. 75c. 18. SANGER, C. R., and RIEGEL, E. R.- Pyrosulphuryl Chloride and Chlorsulphonic Acid. pp. 671-718. March, 1912. 70c.

19. THOMSON, E.- The Fall of a Meteorite. pp. 719-733. March, 1912. 30c 20. PHILLIPS, H. B., and MOORE, C. L. E.- An Algebra of Plane Projective Geometry. pp. 735-790. March, 1912. 80c.

21. PIERCE, G. W., and EVANS, R. D.- On Electrical Properties of Crystals. (I.) Stratification and Capacity of Carborundum. pp. 791-822. 1 pl. March,

1912. 60c.

(Continued on page 2 of Cover.)

OF THE

AMERICAN ACADEMY OF ARTS AND SCIENCES.

MEMOIRS.

OLD SERIES, Vols. 1-4; NEW SERIES, Vols. 1-13. 16 volumes, $10 each. Half volumes, $5 each. Discount to booksellers 25%; to members 50%, or for whole sets 60%.

Vol. 11. PART 1. Centennial Celebration. 1880. pp. 1-104. 1882. $2.00. PART 2. No. 1. Agassiz, A.- The Tortugas and Florida Reefs. pp. 105-134. 12 pls. June, 1885. (Author's copies, June, 1883.) $3.00. PART 3. Nos. 2-3. Searle, A.- The Apparent Position of the Zodiacal Light. pp. 135-157 and Chandler, S. C.- On the Square Bar Micrometer.

October, 1885. PART 4. No. 4.

$1.00.

Pickering, E. C. Stellar Photography.

$1.00.

pp. 158-178.

pp. 179-226. 2 pls.

March, 1886. PART 4. No. 5. Rogers, W. A., and Winlock, Anna. A Catalogue of 130 Polar Stars for the Epoch of 1875.0, resulting from the available Observations made between 1860 and 1885, and reduced to the System of the Catalogue of Publication XIV of the Astronomische Gesellschaft. pp. 227-300. June, 1886. PART 5. No. 6. Langley, S. P., Young, C. A., and Pickering, E. C.- Pritchard's Wedge Photometer. pp. 301-324. November, 1886. 25c. PART 6. No. 7. Wyman, M.- Memoir of Daniel Treadwell. October, 1887. $2.00.

75c.

pp. 325-523.

Vol. 12. 1. Sawyer, E. F.- Catalogue of the Magnitudes of Southern Stars from 0° to 30° Declination, to the Magnitude 7.0 inclusive. pp. 1-100. May, 1892. $1.50.

2.

3.

4.

Rowland, H. A. On a Table of Standard Wave Lengths of the Spectral Lines. pp. 101-186. December, 1896. $2.00.

Thaxter, R. Contribution towards a Monograph of the Laboulbeniaceæ. pp. 187-430. 26 pls. December, 1896. $6.00.

Lowell, P.- New Observations of the Planet Mercury. pp. 431-466. 8 pls. June, 1898. $1.25.

5. Sedgwick, W. T., and Winslow, C. E. A.-(I.) Experiments on the Effect of Freezing and other low Temperatures upon the Viability of the Bacillus of Typhoid Fever, with Considerations regarding Ice as a Vehicle of Infectious Disease. (II.) Statistical Studies on the Seasonal Prevalence of Typhoid Fever in various Countries and its Relation to Seasonal Temperature. 579. 8 pls. August, 1902. $2.50.

pp. 467

Vol. 13. 1. Curtiss, D. R.- Binary Families in a Triply connected Region with Especial Reference to Hypergeometric Families. pp. 1-60. January, 1904. $1.00. 2. Tonks, O. S.- - Brygos: his Characteristics. pp. 61-119. 2 pls. November,

1904. $1.50.

3. Lyman, T.- The Spectrum of Hydrogen in the Region of Extremely Short Wave-Length. pp. 121-148. pls. iii-viii. February, 1906.

4.

5.

75c.

Pickering, W. H.- Lunar and Hawaiian Physical Features Compared. pp. 149-179. pls. ix-xxiv. November, 1906. $1.10.

Trowbridge, J.- High Electro-motive Force. pp. 181-215. pls. xxv-xxvii. May, 1907. 75c.

6. Thaxter, R. Contribution toward a Monograph of the Laboulbeniaceæ. Part II. pp. 217-469. pls. xxviii-lxxi. June, 1908. $7.00.

PROCEEDINGS. Vols. 1-47, $5 each. Discount to booksellers 25%; to members 50%, or for whole sets 60%.

The individual articles may be obtained separately. A price list of recent articles is printed on the inside pages of the cover of the Proceedings.

Complete Works of Count Rumford. 4 vols., $5.00 each.

Memoir of Sir Benjamin Thompson, Count Rumford, with Notices of his Daughter. By George E. Ellis. $5.00.

Complete sets of the Life and Works of Rumford. 5 vols., $25.00; to members, $5.00.

For sale at the Library of THE AMERICAN ACADEMY OF ARTS AND SCIENCES, 28 Newbury Street, Boston, Massachusetts.

VEL

48-6

Proceedings of the American Academy of Arts and Sciences.

VOL. XLVIII. No. 6. SEPTEMBER, 1912.

THE IMPEDANCE OF TELEPHONE RECEIVERS AS AFFECTED BY THE MOTION OF THEIR

DIAPHRAGMS.

By A. E. KENNELLY AND G. W. PIERCE.

« EdellinenJatka »