MEIBOMIUS 



738 



MELANCHROUS 



prevents the tears from coming in contact with the 

 skin. There are from 30 to 40 in the upper and from 

 20 to 30 in the lower lid. 



The Lacrymal and Meibomian Glands, and Adjacent 

 Organs of the Eye. 



1, 1. Inner wall of orbit. 2, 2. Inner portion of orbicularis 

 palpebrarum. 3,3. Attachment to circumference of base of 

 orbit. 4. Orifice for transmission of nasal artery. 5. Muscle 

 of Horner (tensor tarsi). 6, 6. Meibomian glands. 7, 7. 

 Orbital portion of lacrymal gland. 8, 9, 10. Palpebral por- 

 tion. 11, 11. Mouths of excretory ducts. 12, 13. Lacrymal 

 puncta. 



Meibomius, Cyst of, a cyst of a Meibomian gland. 

 M., Foramen of. See Foramina, Table of. M., 

 Glands of. See Gland. 



Meigs's Capillaries. Capillaries penetrating the 

 muscle-fibers of the heart. See Capillary. M.'s 

 Formula or Mixture, an artificial food closely ap- 

 proaching in composition that of human milk. It con- 

 sists of 10 c.c. of cream. 5 c.c. of milk, 10 c.c. of 

 lime-water, 15 c.c. of water, and 2.2 grams of milk- 

 sugar. It is alkaline in reaction, and is composed of 

 88.42 parts water, 11.58 parts total solids, 4 parts fat, 

 I. II parts albuminoids, 6.26 parts sugar and 0.21 part 

 ash. 



Meio- (nti'-o-). For words thus beginning, see Mia-. 



Meissner {inls f -ner). A German anatomist. M., 

 Corpuscles of. See Corpuscles, Tactile, of Wagner. 

 M.'s Ganglia. See Ganglia, Table of M.'s Method, 

 a method of inducing premature labor by puncturing 

 the membranes close up to the fundus of the womb to 

 permit of gradual escape of the liquor amnii. M., 

 Plexus of, a plexus of nerves found in the sub- 

 mucous layer of the small intestine. See Plexus. 



Mel [L.j. Honey. The substance deposited in the 

 honeycomb by the common honey-bee, Apis mellifica, 

 and a few other hymenopterous insects. It consists 

 of a solution of cane-sugar and grape-sugar, with color- 

 ing and odorous matters. It is emollient, nutritive, 

 and often laxative, its properties depending mainly on 

 the character of the flowers from which it is taken. 

 It is an excellent vehicle for expectorant gargles, etc. 

 M. boracis, honey of borax; 64 grains of borax to 

 the ounce of honey. M. despumatum, clarified 

 honey, prepared by heating, skimming, and straining 

 the natural product. M. rosae, honey of rose; red 

 rose 8, clarified honey 92 parts, dilute alcohol,^, s. 

 It is used locally as a gargle. 



Melada (mel-a'-t/nh) [Sp., fern, of nielar, candy]. A 

 moist brown sugar, produced like the muscovado, but 

 not drained free of molasses. 



[//£/lac, dark 

 See Hellebore 



Melagra (mel-a / -grali) [//£/,oc, limb ; aypa, seizure" 



Pain or gout in the limbs. 

 Melain [tnel'-a-in) \jik'kaq, black]. 1. The coloring 

 principle of sepia. 2. A synonym of Melanin. 

 Melaleuca {mel-al-u'-kah). See Cajaput. 

 Melalgia (tnel-al' -je-ali) [ueZoc, limb ; aAyoc, pain] 



Pain or neuralgia in the extremities. 

 Melam(wf/ / -«w) [/jf /lac, black ; a/nmom'a~\,C,.\ I 9 N« 

 A complex cyanid, formed on rapidly heatin 

 CNSNH 4 to 200 C. with ammonium chlorid; i 

 is a granular powder, of a yellow color, insolubl 

 12 in water. 



^ 1Aelamm(mel / -am-in)[fje%ar,b]a.c\i; rt7«/«],C 3 H 6 N{ 

 A substance obtained from crude melam by extrac 

 tion with water. It is nearly insoluble in alcohc 

 and ether, and crystallizes from hot water ii 

 shining monoclinic prisms. 

 Melamphonous (inel-ain> '-fo-nus) 



fyuvi], voice]. Hoarse- voiced. 

 Melampodium {tnel-am-po' -de-uni) 



Black. 

 Melampous (inel-am' -pus) \jiklac, black ; nrofcj 



foot]. Black- footed. 

 Melanaemia {inel-an-e'-me-ali). See Melanemia. 

 Melanagogue {??iel-an / -ag-og) [fieAag, black ; d; 

 leading]. I. Causing an expulsion of dark feces, o 

 of bile. 2. A remedy that causes the expulsion ol 

 dark stools or of bile ; formerly, a medicine of servic 

 in the treatment of choler, or melancholy. 

 Melancholia(w^/-a«->£0 / -/ 1 ?-#//)[,ue/lac, black ; x°^V> htle 

 from a former supposition that it was due to excess 

 biliary secretion]. Melancholy; a form of in.->anit 

 characterized by depression of spirits and gloomiiu- 

 without any adequate cause, the central idea being on 

 of personal unworthiness. As the case develop 

 lusions, associated with illusions and hallucination 

 appear, and the patient may at times show su 

 cidal tendencies. The general nutrition suffers, u 

 in females menstruation is usually suppressed, 

 usual age at which melancholia appears is during 11 

 life. It follows any depressing cause acting in coi 

 tion with a strong hereditary tendency. It usuall 

 minates in recovery, but some cases develop into di 

 tia or mania, while others die from exhaustion, 01 

 mit suicide. M. agitans, M. agitata, M., Excitec 

 or M., Motor, melancholia associated with 1 

 restlessness and mental agony. M. attonita, or M 

 Stuporous, a form in which the patient is plungt 

 into absolute mental stupor. M., Cataleptic, a 

 associated with the cataleptic state. M. catatonic. 

 A synonym of Catatonia. M., Delusional, a 1 

 which delusions constitute a prominent featun 

 the disease. M. erotica, a form caused by 1 

 pointment in love. M. errabunda, a form 

 panied by great restlessness. M., Homicida 

 melancholia with homicidal tendencies. M., Hype 

 chondriac, in which the delusions refer mainly to tl 

 state of the patient's viscera. M., Hysteric, th 

 due to hysteria. M., Motor. See M. agitan 

 M., Puerperal, melancholia appearing during tl 

 puerperium. M., Resistive, a form in which tl 

 extremities are rigid, and this rigidity increases 

 attempts are made to move them. The patient ; 

 stinate in his nature also. M., Simple, the ordina 

 form. M., Stuporous. See M. attonita. 

 Melancholiac (mel-an-ko'-le-ak) [utlac, black ; i" / 

 bile]. A person who is affected with melancholia. 

 Melancholic {mel-an-kol' '-ik) [ui'/ac;, black ; r»>',, bik 



Sad ; depressed ; affected with melancholy. 

 Melancholy (mel'-an-kol-e). See Melancholia. 

 Melanchrous (me/ -an'-krus) [ui'/nr. black; r/«i<;. 

 of skin] . Affected with melanism. 



