An aid to national defence
By: by Major-General Cameron.
Series: CIHM/ICMH Microfiche series = CIHM/ICMH collection de microfiches -- no. 10336; CIHM/ICMH microfiche series -- no. 10336
Publisher: C.B. Robinson
Published: 1890
Place of publication: Toronto
Language: eng
Format: Microform
Number of pages: 18
Subjects: Homing pigeons.; Pigeons.; Air mail service -- Canada.; Pigeons voyageurs.; Pigeons.; Poste aérienne -- Canada.
Other titles: Messenger pigeons, a national question.