LAXIQUININ 



331 



LEAD 



sai 



an 



which would occur if the same amount of light were 

 spread uniformly over the disc. T., Teevan's, frac- 

 ture of a bone occurs in the line of extension, not in 

 that of compression. L., Virchow's. See under 

 Tumor. L., Von Baer's. See L., Boer's (Illus. 

 L., Vulpian-Prevost's. See Sign, Pri- 

 nt's. L., Wolff's, every change in the static rela- 

 ons of a bone leads not only to a corresponding 

 ange of internal structure, but also to a change of 

 external form and physiologic function. L., Zeune's, 

 at the proportion of cases of blindness is greater in 

 ie frigid zone than in the temperate zone and in- 

 creases in the torrid zone as the equator is approached. 

 Laxiquinin (iaks-e-kwin' -in). A proprietary remedy 

 said to be quinin combined with laxatives. 

 :ol \Liks'-ol). Castor oil combined with saccharin 

 id oil of peppermint. 

 Layer. (See Illus. Diet.) L., Animal, L., Animal 

 Germ, the epiblast. L., Baillarger's. See Line, 

 Outer (of Baillarger) (Illus. Diet.). L., Bechterew's, 

 e layer of fibers between, and parallel to, the tan- 

 ntial fibers and Baillarger's layer in the cerebral cor- 

 L., Bernard's Granular. See under Bernard 

 Illus. Diet. ). L., Bruch's, the lamina basalis which 

 forms the inner boundary of the choroid. L., Brunn's, 

 e deep layer of the nasal mucosa which is formed of 

 more or less pyramidal epithelial cells. L., Cellular, 

 the endothelial layer of the blood-vessels and lymph- 

 vessels, composed of flattened nucleated cells. Syn., 

 Cellular coat; Epithelial layer; Endothelial tube 

 [His]; Perithelial tube [Auerbach]. L., Claustral. 

 See Formation, Claustral. L., Corneal, L., Corne- 

 ous, the epidermis. L., Corneous tof the blasto- 

 derm), the epiblast. L., Cortical, the cerebral cortex. 

 L., Cuticular, a striated, hyaline, refractive layer at 

 the free end of a columnar cell. Syn., Hyaline band; 

 Striated band; Striated border; Cuticular border; 

 Cuticula ; Basal border ; Basal lid ; Cuticular mem- 

 brane ; Cuticular structure ; Limitans externa. Cf. 

 Operculum. L., Dermic, the epiblast L., Dobie's. 

 See Line, Dobie's, or Krause s Membrane (Illus. 

 Diet"). L., Elastic Longitudinal Fiber ( of Remak). 

 See Henle's Fenestrated Membrane (Illus. Diet.). L., 

 Embryonic. See Germ Layer (Illus. Diet.). L., 

 Epithelial. See L., Cellular. L., Epithelial 

 Glandular, L., Epithelioglandular (of the blasto- 

 derm), the hypoblast. L. , Epitrichial. See Stratum 

 epitrichiale. L., Fifth (of the cortex cerebri). See 

 Formation, Claustral. L., Floegel's, the layer of 

 granules in the transparent lateral disc of a muscular 

 fibril. L., Fourth (of the cortex cerebri). See For- 

 mation, Granular. L., Fusiform. See Formation, 

 Claustral, and Cf. L., Molecular ; L., Small pyra- 

 mid-cell ; L., Large pyramid-cell ; L., Polymorphous- 

 cell. L., Ganglion-cell, L., Gelatinous. See 

 Stratum gelatinosum. L., Ganglionic. See under 

 Retina (Illus. Diet.). L., Gennari's. See L., Bail- 

 ie., Henle's Outer Fibrous, the zone of 

 cone-fibers at the margin of the fovea centralis. L., 

 Inert. See L., Poiseuille' >. L., Inner Nuclear. 

 See Internal Granular Layer, under Retina (Illus. 

 Diet. |. L., Intermediary. See Coat, Subepithelial. 

 L.. Intermediate. See Stratum gelatinosum. L., In- 

 voluted Medullary. See Lamina, Medullary (Illus. 

 Diet. . L., Kaes-Bechterew's. See L., Bech- 

 tereiu's. L., v. Kolliker's Fibrous. See M-s/n's 

 (Illus. Diet .). L., Langhans', the inner of the 

 two layers of cells covering the chorion ; it is derived 

 from the ectoderm. L., Langerhans'. See under 

 \ Ms i Illus. Diet.). L., Large-pyramid-cell, 

 the third layer of the cerebral cortex, composed of 

 pyramidal cells larger than those of the second layer, 



increasing in size from above downward and attaining 

 a diameter of 40 u. Cf. L. , Molecular ; L. , Small- 

 pyramid-cell ; L., Polymorphous-cell; L., Fusiform. 

 L., Lemniscus (of the tegmentum), the inferior 

 lemniscus. L., Molecular, the outermost layer of the 

 cerebral cortex, made up of neuroglia, a few small 

 ganglion-cells, and a reticulum of medullated and non- 

 medullated nerve-fibers. Cf. L., Large pyramid-cell ; 

 L., Small pyramid-cell ; L., Polymorphous-cell ; L., 

 Fusiform. L., Mucous. See Rete mucosum (Illus. 

 Diet.). L., Nerve-fiber. See under Retina (Illus. 

 Diet. i. L., Nervous (of the blastoderm) [Reichert], 

 L., Neuroepidermal of the blastoderm) [RemakJ, 

 the epiblast. L., Oehl's. See Stratum, OeAl's 

 (Illus. Diet.). L., Oophorous (of the ovary), the 

 outer portion of the ovary in which the ovules are 

 formed. L., Osteoblastic. See L., Osteogenetic 

 (Illus. Diet.). L., Outer Germ, the epiblast. L., 

 Outer Molecular. See under Retina (Illus. Diet). 

 L., Outer Nuclear. See External Granular Layer, 

 under Retina (Illus. Diet). L., Pander's, the 

 splanchnopleural layer of the mesoderm in which the 

 blood-vessels are first formed. The reddish-yellow 

 patches in this layer, which consist of corpuscles con- 

 taining hemoglobin, are known as lander's islands. 

 L., Perforated, of Henle. See Henle's Fenestrated 

 Membrane (Illus. Diet). L.s, Plexiform, the molec- 

 ular layers of the retina. L., Poiseuille's. See P.' s 

 Space (Illus. Diet), called inert or still layer because 

 in it the leukocytes roll along slowly while the red 

 corpuscles move more rapidly in the axial stream. L., 

 Polymorphous- cell, the fourth layer of the cerebral 

 cortex. See Formation, Granular. L., Proligerous. 

 See Discus proligerus (Illus. Diet). L., Purkinje's 

 Granular. See Spaces, Interglobular (Illus. Diet). 

 L., Rauber's. See under Rauber (Illus. Diet). L., 

 Remak's, the inner longitudinal fibrous layer of the 

 tunica intima of large arteries. S., Reticular. See 

 Z., Inner Molecular (Illus. Diet). L., Sattler's 

 Vascular, the layer of blood-vessels of the choroid 

 lying internally to Halter's tunica vasculosa. L., 

 Sensory, the epiblast. L., Serous (of the pericar- 

 dium , the inner layer of the pericardium. L.. Skin, 

 L., Skin Sensory, the epiblast. L., Skin Fibrous, 

 the parietal mesoblast. L., Sluggish. See L. , Poi- 

 seuille's. L., Small Pyramid-cell, the second layer of 

 the cerebral cortex, made up of small p\Tamidal cells, 

 with a diameter of about 10 u. Cf. /,., Molecular; 

 L., Large pyramid-cell; L., Polymorphous-cell ; L., 

 Fusiform. L., Still-. See L., Poiseuille's. L., 

 Striated (of the internal coat), L., Subendothelial. 

 See Coat, Subepithelial. L., Superpapillary. See 

 Rete mucosum (Illus. Diet). L., Tegmental (of the 

 lemniscus), the inferior lemniscus. L., Trophic, the 

 hypoblast. L., Unna's, Langerhans' layer. L., 

 Vascular. See L., Pander's. L., Vesicular. See 

 Z.. Ganglionic. L., Waldeyer's, the internal or 

 vascular layer of the ovary. 



Layership (la'-ur-ship). The relation of tissues to the 

 primitive germ-layers. 



Lead. iSee Illus. Diet) L. Bitannate. See Z. 

 Tannate. L. Oxid, Brown, PbO„ a dark-brown or 

 blackish powder. Syn., L. dioxid ; Peroxid of lead; 

 Anhydrous plumbic acid. L. Oxid, Red, L., Red, 

 Ph,6 4 , a bright red powder soluble in glacial acetic 

 acid; used in plasters and salves. Syn., Minium; 

 Plumboplumbic oxid. L. Oxid. Yellow, PbO, a yel- 

 low or yellow-red powder soluble in acetic or nitric acid ; 

 used in ointments and plasters. Syn., Plumbous oxid ; 

 Lead protoxid ; Litharge massicot ; Monoxid of lead. 

 L. Sulfocarbolate, PbC 6 H 5 SO<>, — 5H,0, "white, 

 shining crystals turning red with time, soluble in 



