4 p.m.
`` I am going to get Polton to photograph a couple of specimen pages -- is that the postman or a visitor ? '' It turned out to be the postman , and as Thorndyke extracted from the letter-box a blue official envelope , he glanced significantly at me . `` This answers your question , I think , Jervis , '' said he . `` Yes ; coroner 's subpoena and a very civil letter : ` sorry to trouble you , but I had no choice under the circumstances ' -- of course he had n't -- ` Dr. Davidson has arranged to make the autopsy to-morrow at 4 p.m. , and I should be glad if you could be present . The mortuary is in Barker Street , next to the school . ' Well , we must go , I suppose , though Davidson will probably resent it . '' He took up the Testament , and went off with it to the laboratory .