Occasionally I will find documents which ought to be on the web but aren’t. The following is a running list of papers, hosted for academic purposes as fair use, that are perhaps interesting to others.

• Tobler W.R. ”Of Maps and Matrices“, Journal of Regional Science, 7 (supplement), 1967, pp. 275–280. Wiley, the publisher, maintains electronic copies of the journal but their volume 7 contains no supplement. They’ve been informed of the error (see case number 11069719) but after two years seem uninterested in fixing it. I have not hosted all the articles online, just this one which I discovered while researching the history of pattern recognition. If you want to see a very early (perhaps the first) demonstration of automated contour mapping, look no further.
• An unpublished paper by William Kahan and K-C Ng written in 1986, titled simply SQRT. The paper was distributed to a network of colleauges, and, strangely enough, a version of it is preserved in a widely distributed numerical library, fdlibm. In the only discoursive comment block in the whole library, nearly all of the paper is in machine readable text at e_sqrt.c. This scan was graciously provided by David Hough.
• A post to the Linux Kernel Mailing list by Linus Torvalds in 1995, formerly at Indiana University’s archive (link will 404) regarding an adaptation of the Kahan and Ng’s proposed ‘recriproot’ for glibc on the DEC Alpha architecture. The post is preserved here.