The Law of Conservation of Pain

Overview:

• Title: The Law of Conservation of Pain
• Author: Spider Robinson
• Year: 1974
• Type: Short Fiction

Editions/Publications:

• 1974. Vertex: The Magazine of Science Fiction, December 1974 (1974, Donald J. Pfeil, $1.50, 100 pages, Magazine)
• 1977. Callahan's Crosstime Saloon (1977, Spider Robinson Berkley, ISBN-10: 0425032116, 212 pages, Paperback, Collection)
• 1977. Callahan's Crosstime Saloon (1977, Spider Robinson Ace, ISBN-10: 0441090370, 170 pages, Paperback, Collection)
• 1987. Callahan and Company: The Compleat Chronicles of the Crosstime Saloon (1987, Spider Robinson Phantasia Press, ISBN-10: 0932096484, $20.00, xiii+256 pages, Omnibus)
• 1987. Callahan's Crosstime Saloon (September 1987, Spider Robinson Ace, ISBN-10: 0441090435, $2.95, 170 pages, Paperback, Collection)
• 1989. Callahan's Crazy Crosstime Bar (1989, Spider Robinson Legend, ISBN-10: 0099600609, £3.50, 351 pages, Paperback, Collection)
• 1997. The Callahan Chronicals (1997, Spider Robinson Tor, ISBN-10: 0812539370, $9.99, xvii+399 pages, Paperback, Collection)

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