Did you keep any of these written orders？

Did you keep any of these written orders？ ‘Perhaps you don't believe me， sir， but I know what Iheard．For a week now the person-or thing-in that studyhas been crying night and day for some special chemical powders．My master was in the habit，when he was particularlybusy with his scientific work，of writing orders on pieces ofpaper and leaving them on the stairs．‘We've had nothing elsethis week， nothing except written orders and a locked door．I've been to every chemist in town in search of these chemicalsof his，but they were never right．They weren't pure enough，he said． I had to take them back to the shop，and try anotherchemist．I don't know what these chemicals are，but the person in that study wants them terribly badly．’

‘Did you keep any of these written orders？’asked Mr Utterson．

Poole reached in his pocket and brought out a note．Thelawyer read it carefully．It said：‘I am returning your chemicals，as they are impure and therefore useless．In the year18-you made up a mixture of what chemical powders for DoctorHenry Jekyll． Please search your cupboards for some more ofthe same mixture and send it to Doctor Jekyll AT ONCE．Thisis VERY IMPORTANT．’