APPENDIX II. 



H^EMATOZOA. 



H^MATOZOA IN MAN, BIRDS AND TURTLES. H^MATOZOA IN 

 EQUINES, CAMELS, RATS AND FISH. ILEMATOZOA IN FROGS. 



H^EMATOZOA IN MAN (MALARIA). 



IN 1880 Laveran, in Algiers, noticed the existence of peculiar 

 structures in the blood of a patient suffering from malaria, and 

 his researches were communicated to the Academy of Medicine in 

 Paris in 1881 and 1882, and subsequently published in extenso in a 

 treatise on the subject. 



Laveran described various bodies which he was led to' regard as 

 different stages in the life-history of the same micro-parasite. The 

 most striking forms were cylindrical elements with pointed extre- 

 mities. They were crescent -shaped and pigmented in the middle. 

 There were other forms, more frequently found, which were either 

 free in the serum or in contact with the red blood-corpuscles. 

 They were more or less spherical, pigm exited, and endowed with 

 amoeboid movement. Other forms, again, were provided with motile 

 filaments three or four times as long as the diameter of a red blood- 

 corpuscle. And, lastly, there were little masses of hyaline material, 

 which Laveran regarded as dead forms. 



These observations at first attracted little attention ; but they 

 have since been confirmed and extended by Richard, Councilman and 

 Abbot, Marchiafava and Celli, Golgi, Sternberg, Osier, the author, 

 Vandyke Carter, Manson, and others, and their importance fully 

 recognised. 



The different forms assumed by the haematozoon of malaria may 

 be described in two groups : those within the red blood-corpuscles, 

 and those free in the serum. 



Intra-corpuscular bodies. These are of three kinds. First t 



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