| Description | First page of letter is missing. Encloses a copy of Tribuna in which Grassi is quoted as saying that only three species of mosquito carry malaria and that one of A Bignami's patients developed malaria after being bitten by them. Tribuna also says that Dionisi has found parasites similar to those of human malaria in bats and asks Ross for specimens on behalf of Grassi and E Marchifava |