Yep, I have it, Transactions v. 1, pages 84-85. Interesting recollections. The first known Oblong series were in 1986, not 1988. In July 1988 (the only month for which I had detailed info), Oblong's intervals ranged from a short of 15h 54m to 47h 30m; these intervals are known singles from the use of runoff channel markers. The mean interval (which was all-but-meaningless given the range) was 30h 58m. During that month, there were six recorded cases where an Oblong eruption was followed by a short-interval follow-up eruption. These six intervals were 2h 14m, 2h 14m [yes, two identical values], 2h 04m, ~2h 05m, and <3h. There was one recorded case of a second follow-up eruption, when the second of those 2h 14m intervals saw a third eruption just 33 minutes later. In the text, I wrote: "As first seen during 1986, Oblong may have a series of eruptions rather than a single isolated play." Then, after listing the follow-up eruptions of July 1988, I stated: "These values in each case are entirely in accord with the observations of 1986-87." Scott Bryan ----------------- In a message dated 7/8/2015 11:11:55 P.M. US Mountain Standard Time, goldbeml at ucmail.uc.edu writes: As far as I know, the first reports of Oblong series were in 1988, when Oblong was only erupting every day or so. There is probably a good summary in Phil Landis' annual report. Scott Bryan's article on the Grotto-Giant Complex in Transactions 1 may also discuss Oblong's behavior that year. Does anyone have these volumes on hand who can look up the details? I think I know where our family's copies are, but I do not have ready access to them at the moment. -------------- next part -------------- An HTML attachment was scrubbed... URL: </geyser-list/attachments/20150709/3cebbd51/attachment.html>