National Academy of Sciences.

Papers entered to be read before the Academy,
at the present session.

* I. The Geologic Age of the Equus Fauna, By G. K. GILBERT

* II. The Cowles Electrical Furnace, By T. STERRY HUNT

* III. On the Phylogeny of the Batrachia, By E. D. COPE

* IV. On the Phylogeny of the Placental Mammalia, By E. D. COPE

* V. The Comet of Biela, - - - By H. A. NEWTON

‡ VI. Areas of High Barometric Pressure over Europe and Asia, By ELIAS LOOMIS

† VII. The Cockroach in the past and in the present, by S. H. SCUDDER

† VIII. On the diathermancy of Ebonite and Obsidian, and on the production of Calorescence by means of Screens of Ebonite and Obsidian, - - - - - By ALFRED M. MAYER

† IX. On the Coefficient of Expansion of Ebonite, By ALERED M. MAYER

† X. On the determination of the Cubical Expansion of a solid by a method which does not require calibration of vessels, weighings, or linear measure, - - - - By ALFRED M. MAYER

† XI. On measures of absolute Radiation. - By ALFRED M. MAYER

‡ XII. On the Geology of the region near Zacualtipan, Hidalgo, Mexico, By E. D. COPE

* Read April 20th.

† Read April 21st.

‡ Read April 22d.

†XIII. On ancient and modern methods of arrow release,

By EDWARD S. MORSE

‡XIV. The ordinal and super-ordinal groups of Fishes,

By THEO. GILL

†XV. On the absolute and relative wave lengths of the lines of the Solar Spectrum,

‡XVI. Platinous compounds as additive molecules,

By WOLCOTT GIBBS

†XVII. Influence of Magnetism on Chemical Action,

By IRA REMSEN

XVIII. Upon the Deaf and Dumb of Martha's Vineyard (continuation of Research relating to the ancestry of the Deaf.)

By ALEXANDER GRAHAM BELL

†XIX. On the Invisible Spectra,

By S. P. LANGLEY

‡XX. Cretaceous metamorphic rocks of California, (by invitation.)

By G. F. BECKER

XXI. On color contrast,

By OGDEN N. ROOD

XXII. Classification of the Cambrian System of North America, (by invitation,) - - - - -

By CHAS. D. WALCOTT

†XXIII. Crystallization of Platinum by means of the electric discharge in vacuo,

‡XXIV. The Stomatopoda of the "Challenger" collection,

By W. K. BROOKS

XXV. Budding in the Tunicata

By W. K. BROOKS

XXVI. Effect of Magnetization on the Electrical resistance of metals,

By A. W. WRIGHT

XXVII. On a proposed Expedition into the interior of Greenland during the present summer with Disco as a base, (by invitation.)

By R. E. PEARY, U. S. N.

† Read April 21st.

‡ Read April 22d.

PAPERS TO BE READ ON TUESDAY, NOVEMBER 14th 1882.

NATIONAL ACADEMY OF SCIENCES.

1. Mean Annual Rain-fall. Elias Loomis.

2. On White Phosphorus Ira Remsen.

3. On the General Equations of Optics, as derived from the Electro-magnetic Theory of Light. J. Willard Gibbs.

4. On an Improved Form of Standard Daniell Cell. George F. Barker.

5. On Complex Inorganic Acids. Wolcott Gibbs.

6. On a Modified Form of Solar Eye-piece for use with Large Apertures. Charles A. Young.

7. On Triassic(?) Insects from the Rocky Mountains. Samuel H. Scudder.

8. Explorations on presenting a Copy of the first ten numbers of the Author's Celestial Charts. C. H. F. Peters.

9. Lists of Errors in Star Catalogues. C. H. F. Peters.

10. Remarks on the Structure of the present Comet. C. H. F. Peters.

11. On a Method of studying the Laws of Contrast quantitatively. O. N. Rood.

12. On the heat of the Comstock Lode. G. F. Becker.

13. Topographical Effects of Faults and Land-slides. G. F. Becker.

14. Preparation of Cyanin from Chinoline. C. F. Chandler.

15. On the place of the Echeneididae in the System. Theo. Gill.

16. On the existence in both Hemispheres of a terrestrial dry zone and its cause. A. Guyot.

17. On So-called Eruptive Serpentines.

18. On a Spherometer for measuring lenses of any Diameter.

Alfred M. Mayer.

19. On a Graphical method of representing the errors of a Screw.

Alfred M. Mayer.

20. On a Simple Experimental Demonstration of Ohm's law.

Alfred M. Mayer.

21. On the Fauna of the Puerco Eocene.

E. D. Cope.

22. On the Permian Genus Diplocaulus.

E. D. Cope.

23. On the Physical conditions under which Coal was formed.

J. S. Newberry.

24. Effect of Magnetism on Chemical Action.

Ira Remsen.

25. On Sinapic Acid.

Ira Remsen.

26. On the Total Solar Eclipse of May 6th, 1883.

Charles A. Young.

27. Physical and Geological character of the Sea-bottom off our coast, especially beneath the Gulf Stream.

A. E. Verrill.