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Report on astronomical observatories for 1886 / by George H. Boehmer
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ASTRONOMICAL OBSERVATORIES .

(/) Chronograph: One.

(g) Clock: One sidereal; makers, Bond & Son.

(h) One chronometer: Mean time; makers, Bliss & Creighton.

( i) Miscellaneous: Small telescopes; one by Clark & Sons ; aper-ture, 3 inches.

Princeton, New Jersey .

Observatories of the College of New Jersey.

I. Halstead Observatory.

Longitude from Washington, 9 m 32.60 s E.

Latitude, 40° 20' 55.8" N.

Director: Prof. C. A. Young.

Situated at the western extremity of the college campus, and abouthalf a mile west of the School of Science observatory.

The large telescope has been placed in position. The required fundshave been subscribed by the friends of the college, Kobert Bonner,of New York, R. L. Stuart, and the trustees of the John C. Greenestate being the largest contributors.

The iron dome under which it is mounted is 39 feet inside diameter,and very heavy. A 4-horse gas-engine in the basement furnishes thepower for moving it and managing the shutter. It is possible to raisethe shutter, turn the dome to any part of the sky, and have the tele-scope pointed upon any designated object within five minutes after enter-ing the building. The same engine drives a small Edison dynamicmachine, which supplies electric light to all parts of the observatoryand furnishes electric currents for spectroscopic work.

II. Observatory of the John G. Green School of Science.

Longitude from Washington, 9 m 34.54 s E.

Latitude, 4(P 20' 57.8" N.

Director: Prof. C A. Young.

The establishment is designed for purposes of instruction, and devotedalmost entirely to that object.

Providence, Rhode Island .

Seagrave Observatory.

Longitude from Washington, 22 m 34.51 s E.

Latitude' 41° 49' 46.40" N.

Authority for longitude and latitude: United States Coast Survey,and ourselves, F. E. Seagrave and Leonard Waldo.Director : F. E. Seagrave.