Brian Skiff wrote, in part: Bill Hoyt published a sketch scientific biography of Slipher in 1980, but alas didn't live to produce the book-length bio he planned. Next time you're up here (Bill F), I think we can dig out a copy of Hoyt's article for you, which has many interesting details, and a huge bibliography (a 23-page article with _140_ footnotes!). I might mention that part of the regular Lowell includes the exhibit that contains Slipher's spectrograph and camera, and the Sep 1912 spectrum. \Brian Thanks for the corrections and for the invitation to look at Hoyt's article. I'll try to make it up the hill later this week to see it. Bill in Flagstaff _www.cosmic-voyage.net_ (http://www.cosmic-voyage.net) -- See message header for info on list archives or unsubscribing, and please send personal replies to the author, not the list.