Custer's Last Jump - Howard Waldrop and collaborators. Hmm, I don't think Howard plays well with others, the best story in this collection of collaborations seemed to me to be worse than the worst story of his on his own in the last couple of solo collections I have bought.
Dream Factories and Radio Pictures - Howard Waldrop - reread this to confirm the above hypothesis. One cannot help wondering how many people in the world, apart from me, want to read a story about a parallel world in which Hoover looses the presidential election, is put in charge of the FCC and mandates technical standards for TV so the US gets TV early. Apart from me, obviously. Probably the winner of most obscure POD ever award, though.
Bay Prowler and Philadelphia Blowup by Barry Malzberg as Mike Barry. There is a hilarious essay in Breakfast In The Ruins by Malzberg on his series of pulp thillers, so I bought a couple of them - one of the early ones and the final one where his 'hero' has gone insane and is going from bar to bar shooting people on the basis that they must be drug dealers, until he is finally brought down by his faithful sidekick from early in the series. Amusingly, the essay says that he had to change the name of the hero after writing the first three as Wulf Conlan (Lone Wolf, you see what he did there?) was a bit too similar by coincidence to the publisher's name - therefore he became Dirk Wulff. However, Bay Prowler, which is one of the first three, has some references to Conlan in it. The perils of changing a character's name before the days of global search and replace. It has to be said that despite the fact that they were clearly rattled off for the money and Barry was in serious 'pad it out' mode, they are actually quite diverting. A pulp novel rattled off by a good author is still better than a painstaking work by a crap one.
Punched Card Methods in Scientific Computation by W. J. Eckert (1940). Perhaps an obscure book too far, I have to admit I started skimming it. Fascinating though. Clearly they were using tabulator machines for more than just generating tables of numbers which were then used manually e.g. genuine things of the variety computers would be used for these days - assembling sets of cards for a whole star catalogue and then performing calculations on them.