PKEFATOBY NOTE. 



THE " Eeport on the Human Intestinal Protozoa in Egypt " was 

 completed during the months of July, August and September, 1916, and 

 was sent to the War Office in October. Parts I.-1V. were published in 

 the JOURNAL OF THE ROYAL ARMY MEDICAL CORPS (Nos. 1 6, January to 

 June, 1917). Lack of space did not permit the publication of Part V., 

 which appears here as the Appendix for the first time. Thanks to 

 Mr. H. S. Wellcome, who has already done so much to help the 

 investigation of dysentery problems in England during the War, it has 

 been possible to publish the complete Eeport with a few additions 

 and corrections, together with a paper on "The Carriage of Cysts of 

 Entamceba histolytica and other Intestinal Protozoa by House-flies," 

 which was first issued in Egypt in April, 1916, by order of the Director 

 of Medical Services as a memorandum for circulation amongst medical 

 officers. It was republished in the JOURNAL OF THE ROYAL ARMY 

 MEDICAL CORPS in May, 1917. The section of the Report in Part IV., 

 which deals with the experiments on house-flies as carriers of cysts 

 of protozoa, has reference to this memorandum which had appeared 

 previously. 



Colonel W. H. Horrocks, C.B., K.H.S., Editor of the JOURNAL OF 

 THE ROYAL ARMY MEDICAL CORPS, has very kindly permitted the re- 

 printing of those sections of the Report and the paper on the fly 

 carriage of cysts which have already appeared as explained above. 



C. M. W. 

 1917. F. w. O'C. 



