This list of offprints has been compiled by RASC Archivist Randall Rosenfeld.
Reprints were a service to gather under single covers and make more widely available works the Society deemed worthy of wider circulation to the world-wide astronomical community, or of special interest to a significant number of RASC members. The offprints were usually advertised on the outside backcover of JRASC, and the heyday of the practice was in the 1930s and 1940s. This was in addition to the earlier, concurrent, and subsequent practice of providing contributors with offprints of their articles to circulate as they wished. This list is mostly complete up to the end of 1945, and will be supplemented pending further research. –RR
H. Boyd Brydon, Telescope Mountings for Amateur Builders
(RASC: Toronto, 1936-1937), 48 pp., 25¢, (advertised JRASC 32, 1 [January 1938], outside backcover)
H. Boyd Brydon, The Small Observatory and Its Design
(RASC: Toronto, 1936-1937), 48 pp., 25¢, (advertised JRASC 33, 5 [May-June 1939], outside backcover)
H. Boyd Brydon, Two Inexpensive Drives for Small Telescopes
(RASC: Toronto, 1936-1939), 18 pp., 10¢, (advertised JRASC 34, 10 [December 1940], outside backcover)
H. Boyd Brydon, A.H. Young's Simple Mounting for the 6-inch Reflector
(RASC: Toronto, 1936-1939), 16 pp., 10¢, (advertised JRASC 34, 10 [December 1940], outside backcover)
H. Boyd Brydon, The Visual Photometry of Variable Stars
(RASC, Toronto, 1936-1943): 64 pp., 50¢, (advertised JRASC 38, 1 [January 1944], outside backcover)
H. Boyd Brydon, A Yoke Mounting for the Six-inch Telescope
(RASC: Toronto, 1936-1943), 8 pp., 10¢, (advertised JRASC 38, 1 [January 1944], outside backcover)
H. Boyd Brydon, Setting Up and Adjusting the Equatorial Reflecting Telescope
(RASC: Toronto, 1936-1943), 25 pp., 25¢, (advertised JRASC 38, 1 [January 1944], outside backcover)
H.R. Kingston, The Opening of the Hume Cronyn Memorial Observatory
H. Boyd Brydon, Occultations: Their Prediction, Observation and Reduction
(RASC: Toronto, 1944), 76 pp., 60¢, (advertised JRASC 38, 10 [December 1944], outside backcover)
R.G. Haliburton, New Materials for the History of Man - The Festival of the Dead
(RASC: Toronto, 1920), 122 pp., $1.00, postage 5¢, (advertised JRASC 28, 1 [January 1934], outside backcover)
NOTE: "This is a research into the Year of the Pleiades, first published in Halifax N.S., in 1863; reprinted by the R.A.S.C. in 1920"
W.H. Haas, Does Anything Ever Happen on the Moon?
(RASC: Toronto, 1936-1943), 76 pp., 5 plates, 60¢, (advertised JRASC 38, 1 [January 1944], outside backcover)
NOTE: this was re-issued by the ALPO as ALPO Monograph Number 9 in 2000; see here.
B. Haurwitz, The Physical State of the Upper Atmosphere
(RASC: Toronto, 1936-1937), 96 pp., 50¢, (advertised JRASC 32, 1 [January 1938], outside backcover)
Peter M. Millman, General Instructions for Meteor Observing (revised 1940)
(RASC: Toronto, 1940), 24 pp., 15¢, (advertised JRASC 38, 10 [December 1944], outside backcover)
Peter M. Millman, General Instructions for Meteor Observing
(RASC: Toronto, 1936-1937), 18 pp., 10¢, (advertised JRASC 32, 1 [January 1938], outside backcover)
Peter M. Millman, Meteor Photography
(RASC: Toronto, 1936-1937), 16 pp., 10¢, (advertised JRASC 32, 1 [January 1938], outside backcover)
Additional JRASC Offprints
Additionally, the following were considered important at the time and circulated, even though they weren't advertised in JRASC:
C.A. Chant, An Extraordinary Meteoric Display
(RASC: Toronto, 1913), 70 pp. 1 plate. (Not formally advertised as far as I know, but it appears to have circulated as an offprint.)
F.S.H. Hogg, H.S. Hogg, The Opening of the David Dunlap Observatory, and
R.K. Young, The David Dunlap Observatory, and
C.A. Chant, On Retiring
All circulated together (basically the entire contents of JRASC 29, 7 [September 1935]) or in various combinations (RASC: Toronto, 1935), 47 pp., 17 plates
J.F. Heard, People and Places: Collected Reminiscences, ed. J.D. Fernie (RASC: Toronto, 1979), 64 pp., 1 plate
P. Millman, Canadian Meteorites, from JRASC July-Aug 1953
P. Millman, McKinley, Stars Fall Over Canada from JRASC Oct 1967