| FACING PAGE | | MATOPO | 84 | | TUNDRA (AN ICELAND PONY), HER FOAL, CIRCUS GIRL (BORN 1898), AND HER HYBRID-FOAL, SIR JOHN (BY MATOPO), WHEN A MONTH OLD (BORN 1899) | 86 | | ROMULUS | 92 | | MATOPO | 92 | | ROMULUS | 96 | | FIG. 1.—THE PARASITE OF TERTIAN FEVER, HÆMAMŒBA VIVAX (ROSS). HIGHLY MAGNIFIED | 136 | | FIG. 2.—VARIOUS STAGES WHICH THE PARASITE OF THE ÆSTIVO-AUTUMNAL FEVER, HÆMOMENAS PRÆCOX(ROSS), PASSES THROUGH IN THE BODY OF THE MOSQUITO ANOPHELES. MAGNIFIED 2,000 TIMES. AFTER ROSS AND FIELDING-OULD | 136 | | FIG. 3.—FORMATION OF THE BLASTS OF HÆMOMENAS PRÆCOX (ROSS) WITHIN THE BODY OF THE MOSQUITO ANOPHELES. MAGNIFIED 2,000 TIMES. AFTER ROSS AND FIELDING-OULD | 144 | | ANOPHELES MACULIPENNIS. MALE, IN CHARACTERISTIC ATTITUDE | 146 | | ANOPHELES MACULIPENNIS. FEMALE | 146 |
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