I think that the very lowest level of bad taste was achieved when you published on the front page an AP photograph of two men shooting a badly burned horse {"Mercy Killing," Aug. 1}.

Is this such an important item that all of D.C. and environs must be grossed out before breakfast? Someone in your organization must be taking lessons from the National Enquirer.

-- Judith Moore

Twice in one week your paper has hit the pits with your photos on the front page of, first, Secretary of Commerce Malcolm Baldrige lying under the horse that killed him and, then, a poor, burned horse being shot after the Mexican plane crash.

A good paper does not have to resort to yellow journalism. Shame. -- Lela Bodenlos Legalize Drugs? No! It makes me sick that Courtland Milloy {Metro, July 30} can write an article about legalizing drugs. It's bad enough now with drug-crazed people going around killing and stabbing and robbing. Does Milloy want everybody to go around and do this?

Being a member of the Metropolitan Police Department and also a member of a vice unit, I see what these people do every day. To legalize drugs is not the answer. Police officers need more and better equipment than we have now, and then maybe we can combat this problem.

I do not want these drug nuts all over the place, in my neighborhood or in any of the schools. Milloy doesn't know what goes on -- he can't see it from my side of the fence. These dealers have all the money they need, so you'd think they'd get their houses fixed. But no! They go out and buy the new Adidas outfit to look good at the go-go. -- Marcello N. Muzzatti It Was Not a Polish Camp Congratulations to The Post! You have joined a host of American newspapers and TV stations that have recently attempted to rewrite the history of World War II in their coverage of the Demjanjuk trial in Israel. This happened with the publication of Dan Fisher's article ''Demjanjuk Pleads With Israeli Court . . .'' {July 28}, in which Treblinka was called ''the Polish extermination camp.'' Previously you published Reuter's dispatches with similar terminology.

This is incorrect. In fact, as the historical record indicates, the Treblinka camp was established by Nazi Germans in Nazi-occupied Poland, that is, in the country with the largest concentration of European Jews whom the Nazis intended to exterminate. The mere geographical location of the camp does not justify describing it as Polish, which implies Polish complicity in operating a Nazi death camp.

While Poles might have been guilty of complicity through passivity (not helping the Jews enough), rarely have they been accused of having actively participated in the Holocaust.

-- Alexander Remmer Right Car, Wrong Spelling I dismissed the error in the July 19 TV Week survey of Bond films. Just a typo, I told myself. Then it appeared again in Rita Kempley's July 31 Style review.

I know it's not as easy to spell as, say, Ford or Chevy or even Yugo, but the car that everyone at The Post seems so eager to misspell, the car that secret agent James Bond drives, is spelled Aston-Martin, not Astin-Martin. -- John Kelly Right Story, Wrong Place The old adage that The Washington Post is an interesting paper because you never know on what page you'll find a page-one story was proven again Aug. 1. Buried on the bottom of page 14 was a story titled "Justice Stevens Endorses Bork for High Court," arguably the most important story published that day. In light of the fact that Judge Bork's opponents make much of the theory that Bork will tip the balance of the court, the endorsement of a sitting justice whose vote is frequently on the side likely to be tipped over is highly significant. Who could have a better view of the internal workings of the court than a member?

Clearly to Justice Stevens either the balance argument holds no water or Judge Bork's qualifications outweigh any other considerations. Either way, Justice Stevens' endorsement was a story sadly passed over compared with the heavy coverage usually accorded this important national issue. -- Spencer B. Eig