According to some recent investigations, it has been shown that the parasite is conveyed by the mosquito. It has been found that one variety of the parasite (filaria nocturna) can be seen in the peripheral blood only at night; another variety (filaria diurna), during the day; while still another variety (filaria perstans) can be found by day as well as by night. Some forms of elephantiasis are occasionally due to the filaria, and sometimes immense thickening of the tissues of the scrotum occurs. In these cases the parasites are not always found. A variety of filaria known as dracunculus medinensis (guineaworm disease) occurs in certain parts of Africa and the East Indies. It has extremely rarely been met with in this country. The worm is usually solitary, is cylindric in form, about 2 mm. in diameter, and from 50 to 80 mm. in length. Only the female is known. The worm gains entrance through the stomach and not through the skin. Other forms of filaria are known: The filaria loa, which has been found in the conjunctiva; the filaria lentis, occurring in cataract; the filaria labialis; the filaria hominis oris, occurring in the lip and in the mouth; and the filaria bronchialis, which has been found in the trachea and the bronchi. Other Nematodes.-The trichocephalus dispar, or whipworm, has been found in the large intestine and cecum, the female measuring from 4 to 5 cm., while the male is somewhat shorter. As many as a thousand have been counted in one case. It rarely causes symptoms. The worm is voided in the feces, the eggs being dark brown and lemon-shaped. Eustrongylus Gigas.-This measures about 30 cm. in length; the female, about 100 cm. It is rarely met with in man. When found in the human subject, it is encountered in the renal region and may destroy the kidney. Rhabdonema Intestinale.—These are the small worms commonly found in the feces, occurring in the endemic diarrhea of tropical climates. They are often found in connection with the ankylostoma; occasionally they are found in the biliary and pancreatic ducts. When present in large numbers, they give rise to intestinal disturbance with anemia. Alkalinity of blood, 136 Ammonia urate in urine, 165 urine, 165 Amoeba coli, 761 Amphoric breathing, 72 voice, 76 Amyloid disease of arteries, 361 of heart, 353 of liver, 520 Anasarca, 20, 342 Addison's, 619 of spinal cord, 666 pernicious, 619 primary, 612 secondary, 612-617, 619 pathology of, 614 symptoms of, 615 treatment of, 616 Anemic fever, 616, 621 Aneurysm, cerebral, 701 of abdominal aorta, 369 of arteries, 365 of heart, 354 pulsation from, 92 saccular, 366 773 Anthrax, 286 bacillus of, 108 Antiplague serum, 120 Antitetanic serum, 115 for tetanus, 115 injections in diphtheria, 248 Aorta, abdominal, aneurysm of, 369 pulsating, 94 Aortic cartilage, 85 cor bovinum in, 335 water-hammer pulse in, 335 orifice, stenosis of, 89 Apex-beat of heart, 77 Apoplectic cicatrix, 696 acute, symptoms of, 491 chronic, 493 Arteries, aneurysm of, symptoms of, 367 calcareous infiltration of, 361 tuberculosis of, 281 Arteriosclerosis, 362 diagnosis of, 364 diffuse, 363 symptoms of, 364 Arteritis, 361 atheromatous, 363 Arthritis deformans, 602 Ascaris lumbricoides, 768 differential diagnosis of, from ovarian of abdomen, 95 Asthma, bronchial, 386 treatment of, 388 sputum in, 125 Atavism, 739 Atelectasis, acquired, 392, 393 of new-born, 392, 393 pulmonary, 392, 393 carnification of lung-tissue in, splenization of lung-tissue in, 393 Atony, 475 Atrophic rhinitis, 371 Atrophy, arthritic, 19 local, 19 muscular, idiopathic, 738, 741 progressive, of Heubner-Strümpell myopathic, 19 of liver, acute yellow, 529 progressive, of spinal origin, heredi- infantile forms of, 685 Auditory nerve, diseases of, 657 Auscultation of endocardial murmurs, Basophilic leukocyte, coarsely granular, comma, 116 icteroides, 120 mallei, 107 of anthrax, 108 of diphtheria, III, 112 in sputum, 127 of Friedländer, 104 in sputum, 127 of glanders, 107 in sputum, 127 of leprosy, 107 of malignant edema, 115 of Sanarelli, 120 of tetanus, 113, 114 biologic characteristics of, 114 of tuberculosis, 104 in sputum, 127 of yellow fever, 120 pseudodiphtheria, 113 tuberculosis, 104 biologic characteristics of, 106 differentiation of, from colon bacil- Widal reaction for detection of, "X," 121 Bacteria found associated with dysen- tery, 295 in feces, 170 in urine, 163 peritonitis due to, 505 |