TROPOCOCAIN 



554 



TUBERCULIN 



Tropococain. See Tropacocain (Illus. Diet.). 



Tropometer (trop-om'-e-ter) [rponi], a turn ; fierpov, 

 measure]. I. An achromatic telescope in which the 

 inverted image of the examined eye is found at the eye- 

 piece, where, either as an aerial image or as an image 

 upon the ground glass, its movements can be accurately 

 observed. (Stevens.) 2. An apparatus for estimat- 

 ing the amount of torsion in long bones. 



Tropon {tnp'-on). A mixture of animal albumin, 33%, 

 and vegetable albumin, obtained chiefly from buck- 

 wheat ; a light brown powder used as a nutrient for 

 the sick and convalescent ; 5-15 gm. with each meal 

 in soup, cocoa, wine, etc. 



Trypanosoma (tri-pau-o-so / -mah) [rpviravov, a borer ; 

 aufia, body]. A genus of Hematozoa. See Parasites, 

 Table of Ani ?n a I (Illus. Diet.). 



Trypanosomatic {tri-pan-o-so-maf '-ik). Pertaining to 

 or dependent upon parasites of the genus Trypan- 

 osoma. 



Trypanosomatosis [tri-pan-o-so-mat-o' -sis). See Try- 

 panosomiasis. 



Trypanosomiasis {tri-pan-o-so-mi-a' ' -sis) [rpinavov, a 

 borer ; ouua, body]. Any of the several diseases due 

 to infection with the various species of Trypanosoma 



iff' v -)- 



Trypanosomose. See Trypanosomiasis. 



Trypsase [trip'-sdz). See Trypsin (Illus. Diet.). 



Tryptolytic {trip-tol-if -ik) [trypsin; "kiiuv, to loose]. 

 Of or pertaining to the peculiar cleavage properties of 

 trypsin. 



Tscherning's Theory of Accommodation. See un- 

 der Accommodation. 



Tschetsik. The Javanese arrow-poison prepared from 

 the root bark of Strychnos tieute, Lesch. Syn., Upas 

 radju. 



Tsetse-fly Disease. See under Disease, 



Tsuga (tsu'-gak) [Japanese word signifying yew-leaved 

 or evergreen]. A genus of coniferous trees including 

 the hemlock, T. canadensis, Carr., indigenous to 

 North America. It furnishes Canada pitch, Canada 

 balsam, pinene, an ethereal oil, cadinene, and bornyl 

 acetate. 



Tua-tua. See Jatropha gossypifolia, L. 



Tuba. The name in the Philippines for a beer made 

 from the sap of the cocoanut palm. 



Tubbing {tub'-ing) [D. tobbe, tub]. The employment 

 of the cold bath in the treatment of fever. 



Tube. (See Illus. Diet.) T., Alimentary, the ali- 

 mentary canal. T., Auditory, the external auditory 

 canal. T., Auricular, the external auditory meatus. 

 T.s, Bochdalek's, "round or tubular cavities opening 

 into the posterior portion of the thyroglossal duct ; 

 like the latter, they are inconstant after birth. T.s, 

 Bouchut's, a variety of tubes for intubation of the 

 larynx. T., Capillary, a tube with ininute lumen. 

 T., Cardiac, the embryonic heart. T., Crookes', a 

 highly exhausted vacuum-tube used in producing x- 

 rays. T.S, Fusion, Priestley Smith's name for a min- 

 iature stereoscope by which the two images formed by 

 a straight and a squinting eye may be fused together 

 and seen simultaneously. Cf. Heterouope. T., He- 

 patic, in the embryo, the bile-tubules. T., Hyaline. 

 See Tube-cast, Hyaline (Illus. Diet). T., Intuba- 

 tion, a breathing tube used after laryngotomy. See 

 Intubation (Illus. Diet.). T., Kuhn's Duodenal or 

 Intubation, a flexible tube composed of a spiral (S- 

 shaped on cross-section) metal band covered with 

 rubber. Within the metal spiral tube there runs a 

 smoothly polished spiral of thick steel wire ; this 

 moves freely within the metal elastic tube, and termi- 

 nates in a knob. T., Mucous, a mucous tube-cast. 

 T.s of Rainey, a name given to sporozoa of the genus 



Sarcocystis for the zoologist Rainey, who discovered 

 them in 1858. T., Ruysch's, a minute tubular cav- 

 ity in the nasal septum, opening by a small, round 

 orifice a little below and in front of the nasopalatine 

 foramen. It is best seen in the fetus and represents 

 the rudimentary homolog of Jacobson's organ. T., 

 Schachowa's Spinal, the section of a uriniferous 

 tubule that lies between a convoluted and a looped 

 tubule. T., Sediment, a "glass cylinder constricted 

 to a fine point at one end and both ends open ; it is 

 used in precipitating urine. T., Tracheotomy. See 

 T., Intubation (Illus. Diet.). T., Vacuum, a sealed 

 glass tube out of which the air has been pumped and 

 which has at each end a piece of platinum wire passed 

 through the glass and entering the tube. 



Tuber. (See Illus. Diet.) 2. The same as T. titter- 

 eum (Illus. Diet.). 



Tubercle. (See Illus. Diet.) T., Acoustic, the nu- 

 cleus of the dorsal cochlear nerve, a leaf-like mass of 

 cinerea wrapped about the dorsolateral surface of the 

 restis. T. of Arantius. See Corpora Arantii (Illus. 

 Diet.). T., Chassaignac's, the carotid tubercle on 

 the transverse process of the sixth cervical vertebra. 

 T. of the Clavicle. See T, Conoid (Illus. Diet.). 

 T. -corpuscle, Lebert's term for the specific cell of 

 tubercle, which he thought that he had found in the 

 yellow cheesy material, which was at that time taken 

 for the typical form of the morbid product, [lagge 

 and Pye-Smith.] T., Darwin's. See Darwinian 

 Tubercle (Illus. Diet.). T., Dissection, verruca ne- 

 crogenica, or anatomic tubercle. T. of the Epiglot- 

 tis. See Cushion of the Epiglottis. T.s, Farre's, 

 cancerous masses on the surface of the liver. T. of 

 the Fibula, the styloid process of the fibula. T., 

 Gerdy's, a more or less pronounced elevation situated 

 anteroexternally to the tubercle of the tibia, to which 

 it is joined by a short ridge ; it serves for the attach- 

 ment of the tibialis anticus. T., Lemurian. See 

 Process, Lemurian. T., Lisfranc's, the scalenus 

 tubercle of the first rib. T., Lower's, a slight prom- 

 inence existing between the openings of the superior 

 and the inferior vena cava in the right auricle. T.s, 

 Morgagni's. See Tubercles, Montgomery* s (Illus 

 Diet.). T. of the Navicular Bone, a prominence 

 on the palmar surface of the scaphoid bone. T.s, 

 Pisiform. See Corpora albicantia (Illus. Diet.). 

 T., Posterior. See Tubercle, Greater (Illus. Diet.). 

 T., Posterior Superior (of second lumbar vertebra). 

 See iMetapophysis (Illus. Diet.). T., Prostatic, the 

 middle lobe of the prostate. T. of the Vagina, a 

 prominence on the anterior wall of the vagina. T., 

 Yellow. See Tubercle (3) and Tvroma (2) (Illus. 

 Diet.). 



Tuberculide (tu-bur'-ku-lid). Any cutaneous mani- 

 festation due to the toxins of the tubercle bacilli. 



Tuberculin. (See Illus. Diet.) T. A, the result of 

 extracting the bacilli with a IO% normal caustic soda 

 solution and filtering and neutralizing the product. 

 T., New("T. R."), an unsteiilized, unfiltered, gly- 

 cerin-water semisolution of living, dried, pulverized, 

 and washed bacilli. T., Original (T. O.). 

 Tuberculin (Illus. Diet.). T., Purified (T. Pur.), 

 the resultant redissolved precipitate of the tuberculin 

 original with 60 '> of alcohol. T. -reaction, Arlo- 

 ing's Theory of, ascribes it to weakening of the 

 tubercle and increase of the secretion by the bacilli. 

 Babes' Theory, that it is a fermentative process or 

 enzvme activity excited by tuberculin. Buchner's 

 andCharrin's Theory, ascribes it to latent intlamma- 

 tion and susceptibility to fever. Eber's Theory, 

 ascribes it to heightened cell energy. Hertwig's 

 Theory, ascribes it to chemotaxis. Klein's Theory, 



