DESCRIPTION OF PLATE IV. 



(Kolle and Wassermann.) 



Malarial Parasite. 



43. To the left a young (spore) tropical parasite. To the right a medium 

 and large tropical parasite. 



44. An almost fully developed tropical parasite. The black granules are 

 pigment heaps. 



45. Young parasites separated from one another. Broken up division . 

 forms twenty-one new parasites. 



46. To the left a red blood-corpuscle with basophilic, karyochromatophilic 

 granules. Prototype of malarial parasite. On the right a red blood -cor- 

 puscle with remains of nucleus. 



Sexual Forms or Gametes. 



47. An earlier quartan gamete (macrogamete in sphere form), female. 



48. An earlier quartan gamete (microgametocyte), male. 



49. Tertian gamete, male form (microgametocyte). 



50. Tertian gamete, female (macrogamete). 



51. Tertian gamete (microgametocyte) still within a red blood-corpuscle. 



52. Macrogamete tertian within a red blood-corpuscle. 



53. Tropical fever, (^stivo-autumnal) gamete, half moon (crescent) still 

 lying in a red blood-corpuscle. In the middle is the pigment. The concave 

 side of the crescent is spanned by the border of the red blood-corpuscle. 



54. Gamete, tropical fever parasite. 



55. Gamete of tropical fever parasite heavily pigmented. 



56. Gamete of the tropical fever parasite (flagellated form), microgameto- 

 cyte sending out microgametes (flagella or spermatozoa). 



