

REPTATION 



1253 RESIN'S 



they become the convoluted tubes of the epididymis, 

 the vas deferens, and the vesiculae seminalis. See, 

 also, Metanephros. R. System, in biology, all the 

 organs directly or indirectly concerned in genera- 

 tion. 



eptation (rep - ta' '- shun) [reptatio, a creeping]. In 

 biology, the act of creeping, 

 eptatorial, Reptatory (rep-ta-to / -re-al, rep* -la-lore) 



■re, to creep]. In biology, creeping, 

 eptilian Heart. See Cor biloculare. 

 epugnatorial (re-pug-nat-o 1 -re-al) [repugnatus, p.p. 

 of repugnare, to fight against, oppose]. In biology, 

 of use in repelling enemies. R. Pores, the external 

 openings of cutaneous glands in certain myriapods, from 

 which is discharged a strongly odorous secretion con- 

 :aining prussic acid. Cf. Stink-glands, under Gland. 

 ^pullulate [re - pul' '- u - lat) (re, again; pm Hula re, to 

 prout]. To grow again. 



pullulation (re-pul-u-la' ' -shnti) [re, again ;pullulare, 

 o sprout] . The return of a morbid growth, 

 pulsion (re-pttl' -shun) [repellere, to repulse]. The 

 nfluence which two bodies exert upon each other when 

 hey tend to increase the distance between them. R., 

 Capillary, repulsion due to the forces causing move- 

 lents of liquids in small tubes. 

 1 pulsorium (re-pul- so / - re-um) [repellere, to drive 



ack]. See Repoussoir. 



1 sectio ire-sek'-she-o) [L.]. See Resection. R. sub- 



eriostialis, a substitute operation for symphysiotomy 



iggested by Christoforis. Subperiosteal resection of 



[lie ends of the pubic bones on either side of the pubic 



int, with the idea of replacement by deposition of 



j jne. 



Fsection (re-sek'-shun) [resectio ; resecare, to cut off]. 

 Jixcision of a portion of bone, nerve, or other struc- 

 :re. 

 £ serve Air (re-zerv'). See Air. 



Fservoir (rez / -er-vwor) [reservoir, a storehouse]. In 



jiology, a cell, tissue or organ in which assimilated 



Ubstances are stored up for future use. See Receptac- 



' .'um. R. of Pecquet. See Receptaculum chyli and 



'/stern of Pecquet. 



Ivident (rez / -id-enf) [residere, to remain behind]. In 



iology, not migratory. R. Physician, House- 



hysician, a physician residing in a hospital. 



Ridual Air [re-zid'-u-al). See Air. 



R;idue (rez / -id-u) [residuum, a remnant]. That 



lich remains after a part has been removed. In 



• :armacy and chemistry, any part remaining after fil- 



uion. See also Radical. 



Riduum (re-zid'-u-um). The balance or remainder. 



ilience (re-ziF -e-ens) [re, back; salire, to leap]. 



le quality of being elastic or resilient. The act of 



ringing or leaping back. Healthy reaction. 



ilient (re-zil' -e-ent) [re, back; salire, to leap]. Re- 



unding ; elastic. R. Stricture, one that is not per- 



mently dilatable. 



R n (rez'-iri) [L. ; resina : gen. and //. , Resince']. 



Any member of a class of compounds made by 



the substances from which they are obtained 



ith alcohol and precipitation with water. The pre- 



itate constitutes the resin of pharmacy. There are 



jur official resinre. 2. Any member of a class of 



; idized terpenes. Resins either accompany terpenes 



crude essential oils, or occur as exudations from 



■ir hardening on exposure to the air. They are 



i orphous, mostly vitreous bodies, insoluble in water. 



1 ey melt at a low heat, are non-volatile, and bum 



ckly with a smoky flame. They are largely used in 



t preparation of varnishes, and several are employed 



J medicine. Resins are divided into (i) true resins, 

 gum-resins, and (3) oleo-resins or balsams. The 



true resins are hard, compact products of oxidation, 

 made up chiefly of what are termed " resin acids," 

 which, admixed with fatty acids, are capable of sapon- 

 ifying with alkalies, and yield " resin soaps ; '' the 

 gum-resins differ from the true resins only in contain- 

 ing some gum capable of softening in water ; and the 

 oleo-resins include the mixtures of essential oils and 

 resin of whatever consistency, and the mixtures of 

 benzoic and cinnamic acid, and salts of these acids. 

 This last class is much the largest of the three. To 

 the first class belong the hard resins, which serve for 

 the manufacture of varnishes, such as copal, dammar, 

 mastic, sandarach, dragons' .blood, gum-lac, and am- 

 ber ; to the second class, olibanum or frankincense, 

 myrrh, ammoniacum, asafetida, galbanum, and traga- 

 canth ; and to the third class, crude turpentine, ben- 

 zoin, storax, copaiba, Peru and Tolu balsams. The 

 following table (Sadller's Industrial Organic Chemis- 

 try) gives the bromin- absorption, the saponification- 

 equivalent, and the proportions of potash neutralized 

 by the various resins. A classified table of the resins 

 is also appended. R.-cell, a cell that secretes resin. 

 R., Cera turn, Basilicon Ointment, resin 35, yellow 

 wax 15, lard 50 parts. R., Common, Colophony, 

 Rosin, the residue after the distillation of the volatile 

 oil from turpentine. R.-duct. Same as R. -passage. 

 R., Emplastrum, Resin Plaster, Adhesive Plaster, 

 resin 14, lead plaster 80, yellow wax 6 parts. R.-flux, 

 a disease caused by the fungus Agaricus melleus, which 

 attacks conifers, giving rise first to an excessive flow 

 of resin, and ultimately to the death of the tree. R.- 

 gland, a large cell, or a group of smaller cells, secret- 

 ing resin. R. -passage, an intercellular cavity formed 

 by masses of tissue becoming separated from each 

 other, and whose function it is to secrete resin. R.- 

 tube. Same as R. -passage. R., Ung. (B. P.), used 

 for the same purpose as the plaster or cerate. 



TABLE OF RESINS. 



I. Copaline or Varnish Resins. 



African Copal. Black Dammar. 

 Brazilian Copal. 



Dammar. 



East Indian Dammar. 



Gum Anime. 



Kaurie, or Coudie Resin. 



Lac. 



Mastic. 



Mexican Copal. 



Piney Resin, or White Dammar. 



Sal Dammar. 

 Sandarach. 



Conarium slrictum. 

 Hymenia, and Trachylobiunt 



martianum. 

 Hopea robusta, H. micrantha, 



Conarium strict um. 

 Dammara orientalis, D. aus- 



tralis, D. zritiensis (" Mab- 



radra "), D. obtusa, D. 



moorii, D. robusta. 



Dammara australis. 



Schleichera trijuga, Croton 

 lacciferum, C. draco. 



Pistacia lentiscus. 



Hymenea 



Vateria indica and V. acum- 

 inata. 



Shorea robusta et al. 



Callitris quadrivalvis. 



II. Soft Resins, or Oleo-resins. 



Balsam of Canada. 

 Brazilian Elemi. 

 Chian Turpentine. 

 Frankincense. 



Manila Elemi. 

 Mexican Elemi. 

 Riga Balsam. 

 Tacamahac (American). 

 Tacamahac (Curaca)._ 

 Tacamahac (East Indian). 

 Turpentine. 



Turpentine (Venetian). 

 Wood Oil. 



Abies canadensis. 



Fcica icicariba. 



Pistacia terebinthus. 



Pinus halepensis. Boswellia 



carteri, B. frereana, B. 



thusifera. 

 Conarium commune. 

 Amyris elemifera. 

 Pinus cembra. 

 Elephrium tomentosum. 

 Fagara octandra. 

 Calophyllum inophyltum. 

 Abies balsamif era, Pinus pat- 



ustris. etc. 

 Larix europ&a. 

 Dipterocarpus turbinatus. 



