

SCHWELLE 



1301 



SCISSORS 



prep 



prepared fresh when required. This reagent has the 

 power of dissolving pure cellulose. It is fit for use 

 only so long as it rapidly dissolves cotton-wool. 

 iStrasburger. ) This reagent possesses its chief interest 

 from the fact that it is the only liquid known in which 

 cellulose appears to dissolve without essential change 

 composition. It hus a limited application in the 

 crimination of the fibers used in the arts, 

 welle (shwel '-eh) [Ger. , " threshold' ' ] . The thresh- 

 old, or limen, of any sensation ; nerve-excitation 

 which just fails of producing a sensation. 

 Schwendener's Theory. See Sch-wendenerism. 

 Schwendenerism (shioen* '-den-er-izm) \_Schwendener, a 

 German botanist, born 1 829]. A theory suggested by 

 De Bary. but avowed by Schwendener, that lichens 

 consist of fungi parasitic upon algae. 

 Schwimmer's Ointment. An ointment for applica- 

 tion to smallpox pustules to prevent pitting. It con- 

 - of carbolic acid 15 grains, olive-oil one dram, 

 prepared chalk sufficient to make half an ounce. 

 ~ is is applied on pieces of clean soft linen. 



e {se-ahzh') [Fr. , "sawing"]. A to-and-fro saw- 

 g movement in massage, practised with the ulnar 

 border, or with the dorsum of the hand. 



Kitic (si-at'-ik) [Inxior, ischium]. Pertaining to the 

 :hium. S. Nerve. See Nerve. S. Notch. See 

 'otch. S. Spine, a triangular eminence on the 

 dorsal border of the body of the ischium. Sciatic 

 Scoliosis. See Scoliosis. 

 Sciatica si-at' -ik-ah) [Sciaticus, pertaining to the 

 ischium]. Pain in the course of the sciatic nerve. 

 This may be confined to the proximal half of the thigh, 

 or follow out the entire course of the nerve and its 

 branches. The pain is constant and gnawing, subject 

 to exacerbations, and occurs most commonly in adults 

 of middle age. 

 Science (si' -ens)\_scire , to know]. Systematized knowl- 

 edge of the order of nature. " Science is that knowl- 

 edge which enables us to demonstrate, so far as our 

 limited faculties permit, that the appearances which 

 we recognize in the world around us are dependent 

 in definite ways on certain properties of matter ; 

 science is that knowledge which enables or tends to en- 

 able us to assign to its true place in the series of events 

 constituting the universe, any and every thing which 

 we can perceive.'' (E. Ray Lankester. ) S., Chris- 

 tian, a method of treating disease upon principles simi- 

 lar to those upon which faith-cure rests. 

 Scientific (si-en-tif'-ik) \scientia, knowledge; facere, 

 to make]. Relating to science. That which is based 

 upon science. 

 Scientist isi'-en-tist) \scientia, science]. A savant; 



one versed in science. 

 Scieropia (si-er-o'-pe-ah) \oniEp6c, shady; o>Tp, eye]. 



Defective vision in which all objects appear dark. 

 Scilla (sil'-ah) [L.,gen., Scilla]. Squill. The bulb 

 f S. maritima or Urginea maritima, found near the 

 editerranean Sea. Its properties are due to a gluco- 

 d, scillitoxin, and several other principles. It acts 

 like digitalis upon the circulation. In large doses it 

 omiting and purging. It is diuretic and ex- 

 pectorant. In cases of nephritis it should be used with 

 caution, as it may prove irritant to the kidneys. Dose 

 gr. j-iv. S., Acetum, '• vinegar of squill," 10 per 

 cent, in strength. Dose rnjc-^j. S., Fid. Ext. 

 DosernJ-v. S.. Oxymel (B. P.'). Dose ^ss-j- S., 

 Pil., Comp. (B. P.) Dose gr. v-x. S.^ Syr., has 

 of vinegar of squill, 45, sugar 80, water q s.. Dose 

 Jss-ij. S., Syr., Comp., fid. ext. squill and fid. ext. 

 nega, each 80, tartar emetic 2, precipitated calcium 

 phosphate 10, sugar 750, water q. s. Dose n\v-;5J,for 

 children as an emetic ; rn_x-xxx, for adults as an ex- 



01 



h 



pectorant. Commonly known as Coxe's Hive Mixture. 

 S., Tinct., 15 per cent. Dose rt\v-xxx. 



Scillin (sil'-in) [oki'/vcl, squill]. An inactive substance 

 obtained from squills. 



Scillipikrin (sil - ip - ik' - rin) \pKi7'/.a, squill; Trixpor, 

 bitter]. A yellowish- white, amorphous, hygroscopic 

 powder obtained from squills. 



Scillitin (sil-it'-in) [gkiA/m, squill]. A white or yel- 

 lowish resinous substance, the bitter principle of squill. 



Scillitoxin (sil- it - oks'-in) [ani/.'/.a, squill; to^ikov, 

 poison]. An amorphous light-brown, bitter, active 

 principle of scilla. It is soluble in alcohol, insoluble 

 in ether and water, and a cardiac poison somewhat 

 resembling digitalis. 



Scillocephalous (si/- o - sef- al ' - us) [ox/7./.a, squill ; 

 KEoa'/ij, head]. Affected with scillocephalus. 



Scillocephalus (sil-o-sef'-al-u<\ \_CKi'/.~/.a, squill; keoo/t], 

 head]. I. Congenital deformity of the head, in 

 which it is small and conically pointed, or squill- 

 shaped. 2. A person with a squill-shaped head, 

 usually an idiot. 



Scillopicrin (sil-o-pik' -rin) . See Scillipicrin. 



Scillotoxin (sil-o-toks' -in). See Scillitoxin. 



Scinde Boil. See Delhi Boil. 



Scintillation (sin-til-a'-shun) [scintilla re, to sparkle]. 

 An emission of sparks. Also a subjective visual sen- 

 sation as of sparks. 



Scion (si'-on) [ME. , OF., sion, a shoot, twig]. A twig 

 or young shoot. 



Sciopticon (si-op' -tik-on) \aiua, a shade ; b— tikoc, per- 

 taining to sight]. A form of magic lantern. 



Scirrhencanthis (skir-en-kan' -this) \01upp6c, hard; ev, 

 in; Kavdoc, canthus]. Scirrhus of the lacrymal gland. 



Scirrhoblepharoncus (skir-o-blef-ar-ong' -kus) [anip'pos, 

 hard ; {3?~idapov, eyelid ; oy/coc, tumor] . A hard tumor 

 of the eyelid. 



Scirrhocele (skir'-o-sel) \piupp6q, hard ; nif/.r}, tumor]. 

 Scirrhous tumor of the testicle. 



Scirrhoid (skir'-oid) [oKip'pGc, hard ; eidoc, like]. Re- 

 sembling a scirrhus. 



Scirrhoma (skir-o'-mah) [ciappoc, hard ; oun, tumor]. 

 Scirrhous tumor. S. caminariorum, chimney-sweeps' 

 carcinoma. 



Scirrhophthalmia (skir-off-thal' -me-ah) [aa'ppoc, hard ; 

 boda/.uoc, eye]. Scirrhus of the eyeball. 



Scirrhosarca (skir-o-sar'-kah) [aKi'ppo^, hard ; <xap£, 

 flesh]. The hardening of the flesh of new-born infants ; 

 sclerema of infants. 



Scirrhosis (shir-o'-sis) [vKip'poe, hard]. The formation 

 of a scirrhous carcinoma. 



Scirrhous (skir'-us) \_OKtpp6c, hard]. Pertaining to, or 

 of the nature of, scirrhus or hard carcinoma. S. Car- 

 cinoma. See Scirrhus. 



Scirrhus, or Scirrus (skir'-us or sir' -us) \ciuppoq, an 

 induration]. A scirrhous or hard carcinoma. 



Scission (sizh'-un) [scindere, to cut]. A cutting 01 

 splitting of anything ; fission. 



Scissiparity (sis-ip-ar'-it-e) [scissus, p.p. of scindere, 

 cut, divide ; parere, to bring forth]. In biology, gen- 

 eration by fission ; schizogenesis. 



Scissor-leg (siz'-or-leg). Same as Cross-leg. 



Scissors (siz'-ors) \_scinder,-, to cut]. An instrument 

 with crossed, closing blades for cutdng. The blades 

 may be straight, angular, or curved. S., Artery, a 

 scissors, one blade of which is probe-pointed, for intro- 

 duction into a duct or canal. S., Canalicular, delicate 

 scissors, one blade of which is probe-pointed, used in 

 slitting the lacrymal canal. S., Cannula, scissors for 

 slitting any canal or tube longitudinally. S., Crani- 

 otomy, a strong S-shaped instrument used in craniot- 

 omy for perforating the skull and cutting away por- 

 tions of bone. S., Iris, one having flat blades which 



