SCHIZORHINAL 



1300 



SCHWEIZER'S REAGENT 



Schizorhinal [skiz- o- ri'-nal) [o~x'i&iv, cleave, split; 

 pig, nose]. In biology, applied to birds in which the 

 posterior margin of the osseous nares has a distinctly 

 slit-like, triangular form, instead of being simply con- 

 cave. In most of these forms the line joining the 

 posterior extremities of the nostrils passes behind 

 instead of in front of the ends of the nasal pro- 

 cesses of the prcemaxillae. Cf. Holorhinal. 



Schizothecal {skiz-o-the'-kal) [(X£/'£«v, cleave, split ; 

 OrjKij, case]. In biology, applied to such birds as 

 have the tarsal envelop (podotheca) scaled or reticu- 

 lated, as distinguished from holothecal. 



Schizothorax (skiz-o-tho' '-raks). Synonym of Schisto- 

 thorax. 



Schizotrichia (skiz-o-trik' -e-ah) [<x;^fen>, to split ; Qpil;, 

 hair]. Splitting of the hair. 



Schlemm, Canal of. A flattened annular channel 

 within the sclera and close to the corneal juncture. It 

 is also called the circular venous sinus, and is the out- 

 let whereby the aqueous humor finds its way into the 

 general circulation. S., Ligament of. See Ligament. 



Schleich Anesthesia, or Infiltration - Anesthesia. 

 Local insensibility induced by the injection into the 

 subcutaneous tissues of dilute solutions of sodium 

 chlorid, morphin, and cocain. Tropacocain in I per 

 cent, solution has also been employed. S. Method 

 (general anesthesia), the administration of small doses 

 of a mixture of chloroform 45 parts, petroleum ether 

 15 parts, sulphuric ether 180 parts. 



Schmiedel's Ganglion. The inferior carotid ganglion. 



Schmerzfreude {schmartz'-froy'-de) [Ger. , Painjoy\. 

 A rare symptom of hysteria, in which pain or normally 

 painful operations seem to the patient pleasant. 



Schmidt, Arrow-markings of. Certain lines occasion- 

 ally seen upon the axis-cylinders of nerves and supposed 

 to be masses of protoplasm by some and connective 

 tissue by others. S., Incisures of, minute fissures in 

 the medullary sheaths of nerves, separating the seg- 

 ments of Lautermann. S.'s Nodes. See AM?. S.'s 

 Test. See Birth. 



Schneiderian Membrane. The pituitary membrane. 

 The nasal mucosa. 



Schnitzer Green. Same as Mittler 's Green. 



Scholeciasis ysko-le-si'-as-is). A term proposed by Hope 

 (1840) for the diseased condition caused by the pres- 

 ence of the larvae of lepidopterous insects. 



Scholl's Method. A method of percussion by which 

 the diffusion of sound along the ribs is prevented. 

 Three fingers are pressed toward the chest, and the 

 second phalanx of the third finger is used for percus- 

 sion. 



Scholler's Method. A method of inducing premature 

 labor. It consists in inserting a tampon of charpie 

 into the vagina, and allowing it to remain until the 

 pains commence. 



Schonlein's Disease. Peliosis rheumatica ; a peculiar 

 affection characterized by multiple arthritis, and an erup- 

 tion which varies greatly in character, and is sometimes 

 purpuric, but more commonly associated with urticaria 

 or with erythema exsudativum. 



Schott Method. A system of gymnastic exercises and 

 mineral baths employed in heart disease and chronic 

 rheumatism. 



Schrager's Lines. A coarse striation, concentric with 

 the outline of the pulp-cavity, produced by the den- 

 tinal tubules in cross-section. See Lines, Table of. 



Schreiner's Base. See Spermin. 



Schroder's Method. See Artificial Respiration. 



Schroth's Cure. A painful form of treatment of pleu- 

 ral effusion, consisting in an entire abstinence from 

 drinking for some days, though fluid is allowed at in- 

 tervals during the existence of the effusion. 



Schrotter's Catheters. See Catheter. 



Schultze, Cells of. See Cell, Olfactory. S.'s Fold, 

 a falciform fold of the amnion extending from the in- 

 sertion of the cord in the placenta to the remains of 

 the umbilical vesicle. S.'s Granules or Granule- 

 masses, minute particles in the blood, produced by 

 the breaking up of the blood-platelets ; also called 

 granules of Max Schultze. S.'s Macerating Fluid, 

 a fluid employed to dissolve cutin and to dissociate 

 plant-cells. It consists of potassium chlorate 3 gi 

 nitric acid 2 drams. Keep the sections in this, cold, 

 for a fortnight. After careful washing in alcohol the 

 preparations may be placed on the slide in glycerin. 

 and the cells easily separated with needles, in 1 

 quence of the solution of the middle lamellae. S.'s 

 Method. See Art 'ifi 'cial Respiration. S.'s Reagent, 

 a solution for use in laboratories. It is prepared as 

 .follows : Iodin is dissolved to saturation in a solution 

 of zinc chlorid, sp. gr. 1.8, to which 6 parts of potas- 

 sium iodid have been added. Cross and Bevan recom- 

 mend the following : Zinc is dissolved to saturation in 

 HC1, and the solution evaporated to sp. gr. 2.0; to 93 

 parts of this solution are added 6 parts of potassium 

 iodid dissolved in 10 parts of water, and in this solu- 

 tion iodin is finally dissolved to saturation. 



Schuster's Treatment. See Treatment, Methods of. 



Schwalbe's Convolution. See Convolutions, 

 of. S., Fissures of. See Fissures, Table of. S.'s 

 Method. See Treatment, Methods of. 



Schwann, Sheath of. The neurilemma of a nerve- 

 fiber, a delicate, connective-tissue membrane, in\ 

 the white substance. See Neurilemma. S.'s Theory 

 of Inflammation. Same as Rokitansky's T 

 See Theory. S., White Matter or Substance of, a 

 coat of myelin deposited within the neurilemmj 

 surrounding the axis-cylinder of a medullated nerve- 

 fiber. It contains cerebrin and lecithin and some fatty 

 matter, is semi-fluid, homogeneous, bright, and 1 

 tive. The medullary sheath. Cf. Myelin. 



Schweigger-Seidel's Acid Carmin. See 

 Table of. 



Schweinerothlauf {shwi-neh-rot'-lowf) [Ger.]; , 

 du pore [Fr.]. Hog-erysipelas. An infectious d 

 of hogs, characterized by fever and the appearani 

 neck, chest, and belly, of reddish or brownish 

 Intestinal hemorrhages are sometimes present, 

 half of the animals affected die. The li 

 sist in a hemorrhagic infiltration of the in: 

 mucosa, swelling and ulceration of the follicles, tume- 

 faction of the mesenteric glands, and petechi; 

 the serous membranes. The blood and organs 

 tain a bacillus which is considered the cause oi ft 

 disease. See Bacillus erysipelatos suis, Koch, 

 Bacteria, Synonyiuatic Table of. 



Schweinfurth Blue, S. Green. See Pigments, Con 

 spectus of. 



Schweininger Cure. See Treatment, Meth 



Schweizer's Reagent. A solution o. Imitated cupnc 

 oxid in ammonia, for use in chemic and physi 

 laboratories. This reagent is prepared as follows: 

 Oxyhydrate of copper is carefully precipitated from th 

 sulphate by a dilute solution of ammonia; tin 

 green precipitate, separated and washed, is 

 while still moist to strong ammonia, in whi< 

 slightly warming, it is dissolved. Upon cooling, 

 tals of sub-sulphate of copper and ammonia fall to th 

 bottom. The filtered liquid contains only th 

 moniacal cupric oxid in solution. It musl be kept in 

 bottles of dark glass, or in the dark. It can a 

 prepared by digesting copper turnings in an open DO 

 tie with liquor ammonii of the Pharmacopeia. A- 1! 

 is very easily decomposed by light, it is perhaps best 



