Cloud forms according to the international classification.
Subtitle: The definitions and descritpions approved by the International Meteorological Committee in 1910. With an atlas of photographs of clouds selected from the collection of Mr. G.A. Clarke of the Observatory, Aberdeen.
Contributors: International Meteorological Committee.
Edition: [2d ed.] / Issued by the authority of the Meteorological Committee.
Series: [Official publication] -- 233 (2d ed)
Publisher: H.M. Stationery Off.; J.E.C. Potter, printer]
Published: 1921
Place of publication: London; [Stamford
Language: eng
Number of pages: 10
Subjects: Clouds.
Notes: At head of title: ... Air Ministry. Meteorological Office.

Most of the plates printed on both sides.