. Essentials of laboratory diagnosis; designed for students and practitioners. and underit the black spot is a blood-plate. 3. Tertian parasite, division form nearby is a polynuclear leukocyte. 4. Quartan parasite, ribbon form. 5. Quartan parasite, undergoing division. 6. Tropical fever parasite (^stivo-autumnal.). In one blood-corpuscle may be seen a smaller, medium, and large tropical fever-ringparasite. 7. Tropical fever parasite. Gametes half-moon spherical from bone marrow. 8. Tropical fever parasite, which is preparing for division heaped upin the blood capillaries of the brai
. Essentials of laboratory diagnosis; designed for students and practitioners. and underit the black spot is a blood-plate. 3. Tertian parasite, division form nearby is a polynuclear leukocyte. 4. Quartan parasite, ribbon form. 5. Quartan parasite, undergoing division. 6. Tropical fever parasite (^stivo-autumnal.). In one blood-corpuscle may be seen a smaller, medium, and large tropical fever-ringparasite. 7. Tropical fever parasite. Gametes half-moon spherical from bone marrow. 8. Tropical fever parasite, which is preparing for division heaped upin the blood capillaries of the brain. Asexual Forms 9. Smaller tertian ring about twelve hours old. 10. Tertian parasite about thirty-six hours old, so-called ameboidform. 11. Tertian parasite still showing ring fever, forty-two hours old. 12. Tertian parasite, two hours before febrile attack. The pigment isbeginning to arrange itself in streaks or lines. 13. Tertian parasite further advanced in division. Pigment collectedin large quantities. 14. Further advanced in the division. (Tertian parasite.) PLATE IV. PLASMODIUM OF MALARIA. 127 When the gametes are taken into the stomach of themosquito (Anophelinae), the male cell shows tail-like projectionswhich have an active Lashing movement, which break oil from thecell carrier and are thereafter termed micro gametes. Theseenter the macrogametes and the combination forms a zygote enters the epithelial layer of the stomach of themosquito, where it continues to enlarge for about one it has reached the size of about 60 microns it is seen tocontain hundreds of delicate falciform bodies. The maturezygote now ruptures, and the sporozoites are thrown off into themidgut of the mosquito, whence they make their wray to thesalivary glands, from which they are introduced into the circula-tion of the person bitten by the mosquito, and then start thenon-sexual cycle already described. As the sexual cycle takesplace into the mosquito, this insect is the definit
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