Originally published in 1949 (when Browne was still using the pseudonym 'John Evans'), Halo in Brass was the third in a four-book series about Chicago private eye Paul Pine. Joe Servello did the cover art for this 1988 reprint.
My copy of Seymour Krim's popular Beat anthology (published 1960), which I picked up at a Mississippi flea market in 1991. Kmart Key 1 price sticker still partially extant.
I bought Seymour Krim's 1960 anthology of Beat writers at a flea market in Mississippi in 1991...but it was originally purchased from Kmart.
"A Question of Degree" (1978), Wire
"Insect Lounge" (1978), Mutants
"Gluesniff" (1985), Scream
Any others? Slide is such an anomaly in the genre.
Rereading one of my old paperback horror anthologies, 1966's Masterpieces of Horror (Rosamund Morris, ed.), I find it interesting that - with the exception of two pieces, "The Damned Thing" by Ambrose Bierce and "The Monkey's Paw" by W.W. Jacobs - all the selections are stories of conventional violence or the threat of physical harm. Some, like John Russell's "The Price of the Head" and Max Brand's "Wine on the Desert," have a nice macabre edge, but all qualify more exactly as crime or suspense stories rather than horror. (Indeed, several tales - the two Sherlock Holmes selections by Arthur Conan Doyle and Lord Dunsany's ubiquitous "Two Bottles of Relish" among them - are, unambiguously, plain old crime stories.)
https://www.isfdb.org/cgi-bin/pl.cgi?837113
The Best Horror Stories (Lynn Picknett, ed.), a massive collection published in 1977, seems to follow the same general notion. Occasionally there's an actual horror story in the sense that the term is understood today (like Eddy C. Bertin's "The Taste of Your Love"), but the balance leans much more heavily toward the conventionally, non-supernaturally grotesque: "The Idiots" by Joseph Conrad, "The Killers" by Ernest Hemingway, "A Rose for Emily" by William Faulkner, "Pigs" by Roald Dahl. The ghost stories and tales of supernatural horror wound up in this book's companion volume, Charles Fowkes's The Best Ghost Stories (a must-own anthology).
https://www.isfdb.org/cgi-bin/pl.cgi?352728
No deep thoughts or enlightening observations here. It just seems odd to me that crime and suspense stories were so routinely categorized as horror, and I'm happy that the classification changed.