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Harvard Depository L.SOC 1257
EDITED BY JOSEPH LOVERING, Permanent Secretary.
CAMBRIDGE:
ALLEN AND FARNHAM, PRINTERS.
Resolutions and Enactments of a Permanent and Prospective Character, xxii
List of Members,
XXV
Members Elected at the Baltimore Meeting,
lv
COMMUNICATIONS.
A. MATHEMATICS AND PHYSICS.
I. MATHEMATICS.
1. Further Remarks upon Systems of Coördinates. By Rev. THOMAS
HILL,
1
2. On the Calculation of the Earthwork of Roads on sidelong and irreg-
ular ground. By Prof. W. M. GILLESPIE,
6
10
II. ASTRONOMY.
1. On the Mean Distances of the Periodic Comets. By Prof. DANIEL
KIRKWOOD,
2. On a supposed Personal Equation in the use of the Zenith Teles-
cope for determining Latitudes by Talcott's Method. By
A. D. BACHE, Superintendent U. S. Coast Survey,
14