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"royal astronomical society" » "royal oeconomical society", "royal economical society", "royal astronomer society", "both astronomical society", "a astronomical society"
"royal astronomical diary" » "royal astronomer diary", "both astronomical diary", "a astronomical diary"
"royal astronomical society" » "royal oeconomical society", "royal economical society", "royal astronomer society", "both astronomical society", "a astronomical society"
"royal astronomical diary" » "royal astronomer diary", "both astronomical diary", "a astronomical diary"