. The Filaria sanguinis hominis and certain new forms of parasitic disease in India, China, and warm countries. h little fearof interruption, and with the sympathies of theobservers entirely on the side of accuracy andtruth. Their work I constantly superintended andchecked. If error has crept into the chart* intowhich I have condensed their observations I amcertain it is of a trifling and unimportant cha-racter, such as is necessarily inseparable from workof the kind ; taken as a whole, it may be thoroughlyrelied on. Both lads came from Hooihoah, a highly filariousdistrict about three daj^s jo
. The Filaria sanguinis hominis and certain new forms of parasitic disease in India, China, and warm countries. h little fearof interruption, and with the sympathies of theobservers entirely on the side of accuracy andtruth. Their work I constantly superintended andchecked. If error has crept into the chart* intowhich I have condensed their observations I amcertain it is of a trifling and unimportant cha-racter, such as is necessarily inseparable from workof the kind ; taken as a whole, it may be thoroughlyrelied on. Both lads came from Hooihoah, a highly filariousdistrict about three daj^s journey to the north ofAmoy. Li Kha (I. in the chart) was twenty-one yearsof age, of average size, and in good general gave no history of fever, lymphangeitis, orof any serious disease whatever, and his bodyappeared to be free from blemish that might beassociated with the presence of filarise. Tiong Seng(II. in the chart), on the contrary, gave a historythat distinctly pointed to filarial infection. He, too, * This chart is reprinted from the Journal of theQuekett Microscopical Club, vol. vi. FILARIAL PERIODICITY. 49 was twenty-one years of age, and in good generalcondition, but lie stated that for six or seven yearshe had been subject to attacks of what he called ague(lymphatic fever), and that these attacks recurredabout once a month. They began, he said, with afeeling of giddiness, and painful aching wearinessin the body and limbs. This gradually merged into acold stage of two or three hours duration, which wassucceeded by a hot stage of very high fever lastingfor twenty-four hours and terminating in a moderatediaphoresis continuing for an hour or two. Thefever was accompanied by complete anorexia, andduring its continuance the inguinal and femoralglands invariably became swollen and excessivelypainful, those on the right side being more affectedthan those on the left. With the exception of theseattacks, and an orchitis which developed while underobservation t
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