jrasc_2011.1_text_final REVISED.indd - The Royal Astronomical ...

Scientific American Issue Name DetailsMay 1949 DAO, Victoria, BC Ingalls compares an American TN’s cross-axis equatorial mount(mistakenly called an “English Yoke mounting”) to the mount of theDAO’s Plaskett telescopeAugust 1949 Walter H. Haas, New Waterford, OH Ingalls again refers to H.’s “Does Anything Ever Happen on the Moon”(see 1943 December supra)February 1950 Robert C. Fairall, Victoria, BC builds a spectroscopeApril 1950 H. Boyd Brydon, Victoria, BC in JRASC Ingalls cites the “late” B.’s design of a “teepee” observatory (Apr. 1939bis supra), calling it a “rare type… its chief merit is its simplicity”September 1950 RASC Ingalls cites the RASC in the context of significant nationalorganizations (1700 members; 300 American), and mentions theOH and JRASC. Ingalls commits his old error of describing it as “afederation of amateur astronomers’ clubs in 11 Canadian cities,” towhich he adds the new one of dating its foundation to the grant ofthe royal appellation (1903)July 1951 H.L. Rogers, Toronto, ON builds synchronome clock with a wooden pendulumMarch 1952 recommendation of the Observer's Ingalls cites the OH as a convenient source for solar ephemera (priced atHandbook US $0.40!)May 1952 recommendation of the Observer's Ingalls by implication gives the edge to the OH over the BAA’s similarHandbookpublicationJanuary 1953 Walter H. Haas, New Waterford, OH Ingalls again refers to H.’s “Does Anything Ever Happen on the Moon”(see Dec. 1943 supra)May 1953 Canadian amateurs Ingalls notes that the systematic record of Jovian cloud formations isentirely due to amateurs “mainly working in organizations… and hasbeen taken up in the last few years… in Canada” (n.b. RASC effortsreally only bore fruit later, e.g. JRASC 56 [1962]: 79-80, 251-252, 57[1963]: 114-119, and 58 [1964]: 39, but could never match theachievements of the BAA, or ALPO)November 1953 T.R. Macfarlane, Regina, SK method of dividing setting circles based on chordsFebruary 1954 E.K. White, Ymir, BC deleterious effects of 17%-25% obstructions in planetary Newtoniansystems, and the advantages of limiting the obstruction to 10%April 1955A.G. Ingalls retires, replaced byC.L. StongDecember 1955 Wilfrid T. Patterson, Guelph, ON technique for effectively utilizing high-quality war surplus achromaticO.G.s as telescope components; & machine for cutting worm gearsJanuary 1957 International Geophysical Year invitation to Canadian amateurs to contribute auroral observations to(IGY) (Dr. Peter Millman NRC,the IGY Auroral Program through M., the Canadian coordinatorOttawa, ON)30 JRASC February / février 2011Promoting Astronomy In Canada