THE RUMFORD FUND 23 



PICKERING, EDWARD C. Stellar Photography. N. S., xi, 179. 



1886. 

 LAXGLEY, SAMUEL P., YOUNG, C. A., and PICKERING, E. C. Pritch- 



arcTs Wedge Photometer. N. S., xi, 301. 1886. 

 ROWLAND, HENRY A. On a Table of Standard Wave Lengths of 



the Spectral Lines. N. S., xii, 101. 1893. 



PROCEEDINGS. 



BOND, GEORGE P. Results of an Examination of the Photographs 

 of the Star Mizar with its Companion and the neighboring Star 

 Alcor, iii, 386. 1857. 



COOKE, JOSIAH P., JR. On the Aqueous Lines of the Solar Spec- 

 trum, vii, 57. 1866. 



WARREN, CYRUS M. Note on an improved Apparatus for the De- 

 termination of Vapor Densities by Gay-Lussac's Method, vii, 

 99. 1866. 



PICKERING, EDWARD C. Dispersion of a Ray of Light refracted at 

 any number of Plane Surfaces, vii, 478. 1868. 



PICKERING, EDWARD C. Applications of Fresnel's Formula for the 

 Reflection of Light, ix, 1. 1873. 



COOKK, JOSIAH P., JR. The Vermiculites : their Crystallographic 

 and Chemical Relations to the Micas ; together with a Discus- 

 sion of the Cause of the Variation of the Optical Angle in these 

 Minerals, ix, 35. 1873. 



PICKERING, EDWARD C., and WILLIAMS, CHARLES H. Foci of 

 Lenses placed Obliquely, x, 300. 1875. 



AMORY, HARCOURT, and MINOT, JAMES J. On the Effect of Heat 

 upon the Magnetic Susceptibility of Soft Iron, x, 308. 1875. 



TROWBRIDGE, JOHN. On a New Induction Coil, x, 381. 1875. 



PEIRCE, BENJAMIN O., JR., and LEFAVOUR, EDWARD B. On the Effect 

 of Armatures on the Magnetic State of Electro-Magnets, x, 385. 

 1875. 



HODGKINS, WILLIAM C., and JENNINGS, JAMES H. On the Time of 

 Demagnetization of Soft Iron, x, 387. 1875. 



