Observations and investigations made at the Blue Hill Meteorological Observatory, Massachusetts, U.S.A., in the years 1903 and 1904, under the direction of A. Lawrence Rotch
Subtitle: with an appendix on the errors of absorption hygrometers
Series: Annals of the Astronomical Observatory of Harvard College -- v. 58, pt. 2
Publisher: The Observatory
Published: 1906
Place of publication: Cambridge
Language: eng
Number of pages: 141
Subjects: Meteorology; Observations; Hygrometers; Sky; Color; Astronomical Refraction
Notes: Chiefly tables.

At head of title: Edward C. Pickering, director.

Includes bibliographical references (p. 141).
Table of contents: title: I. Observations made twice daily in 1903; title: II. Summary for 1903; title: III. Summary for 1903 at the base station; title: IV. Summary for 1903 at the valley station; title: V. Observations made twice daily in 1904; title: VI. Summary for 1904; title: VII. Summary for 1904 at the base station; title: VIII. Summary for 1904 at the valley station; title: Unusual sky-colors; title: The effect of meteorological conditions upon optical refraction in the lower atmospheric strata.