Document YrJ7eNqmDE5awMeezq7jO9K4n

July 9, 1958 Mr. Fred M, Younger Younger Laboratories 3620 Telegraph Road St. Louis 23, Missouri Dear Freds We are sending under separate cover a sample of OS-95 for the following toxicity testss (1) Skin Absorption MLD (Rabbits) (2) Skin Irritation (Rabbits) In the work you did on this material in January and February (Y-58-4), the Minimum Lethal Dose on skin ab sorption was lower than we would anticipate from the components of the fluid. In connection with the skin irritation, if the scores are as high this time as before I think we may have to reoommend avoidance of repeated and prolonged skin oontaot in handling the fluid. As you know, a data sheet on this material was submitted to you with the first sample. This will be Project Ho. Y-58-29. Very truly yours. EPWidh Elmer P. Wheeler Assistant Director Medical Department DSW 018831 STLCOPCB4005375