Imágenes de páginas
PDF
EPUB

T

COLLINS, PRINTER,

PHILADELPHIA.

CONTENTS.

INTRODUCTORY LETTER

Introduction to astronomical observations

Observations and results for latitude of Van Rensselaer Harbor, and the winter-quarters of the expedition

Observations and results for longitude of Van Rensselaer Harbor

a. From moon culminations and moon culminating stars

PAGE

V

1

2

10

10

b. From occultations of Saturn's ring and Mars

26, 29

c. From a solar eclipse

30

Observations for latitude of a number of stations on the west and northwest coast of Greenland .
Observations for position of various stations on both sides of the channel north of Smith's Straits
Note on twilight

42

43

45

APPENDIX-with a map showing the astronomical positions

47

INTRODUCTORY LETTER.

WASHINGTON, March 7, 1860.

[ocr errors]

PROFESSOR JOSEPH HENRY, LL.D.,

Secretary of the Smithsonian Institution:

DEAR SIR: The records of the astronomical observations made under the direction of Dr. Kane, in the second expedition to the Arctic regions, were placed in my hands by his late lamented father, Judge Kane, in December, 1857.

Dr. Kane had selected Assistant Charles A. Schott, of the Coast Survey, for the reduction of a considerable portion of the observations made in that expedition; and I, therefore, placed these in Mr. Schott's possession for reduction and discussion. The work has been faithfully performed, and I recommend it for publication in the "Smithsonian Contributions to Knowledge." It is proper to state that the instruments were furnished in part by the U. S. Coast Survey, and that the computations have been made at the expense of the Smithsonian Institution.

Very respectfully, yours,

A. D. BACHE.

« AnteriorContinuar »