Report on some sources of helium in the British empire
By: by J.C. McLennan and associates.
Contributors: Canada. Mines Branch.
Series: CIHM/ICMH Microfiche series = CIHM/ICMH collection de microfiches -- no. 82749; Bulletin / Canada. Mines Branch -- no. 31.
Publisher: J. de L. Taché
Published: 1997
Place of publication: Ottawa
Language: eng
Format: Microform
Number of pages: 62
Subjects: Helium.; Gases.
Notes: At head of title: Canada. Department of Mines ... Mines Branch ...

"No. 522."

Original issued in series: Bulletin / Canada. Mines Branch ; no. 31.

Tables.

Includes bibliographical references.

Filmed from a copy of the original publication held by Lakehead University, Chancellor Paterson Library, Thunder Bay. Ottawa : Canadian Institute for Historical Microreproductions, 1997.

viii, 72 p., [8] leaves of plates : ill., maps (folded in pocket) ; 25 cm.