“…In the other histioid reticuloses I do not feel that as yet I have enough accurate information to speak with any confidence, but there is no doubt that in many of these cases involvement of the skin is observed and many run a rapidly fatal course, such as the cases described at the Strasbourg Conference (1937) under the heading " Le groupe des granulomatoses encore inal differenciees et de classification difficile," and those of Wayson andWiedmann (.1936), Fraser andSchwartz (1936) and Buchem and Botman (1939) (the latter case presented with a leuco-erythroblastic blood picture), but in few of the published cases that I have read has the pathological account been clear enough to enable the condition to be accurately classified.…”