Volume 1

A text-book of human physiology : including histology and microscopical anatomy with special reference to the requirements of practical medicine / by L. Landois ; translated from the seventh German edition with additions by William Stirling.

  • Landois, L. (Leonard), 1837-1902. Lehrbuch der Physiologie des Menschen. English
Date:
1891
Catalogue details

Licence: Public Domain Mark

Credit: A text-book of human physiology : including histology and microscopical anatomy with special reference to the requirements of practical medicine / by L. Landois ; translated from the seventh German edition with additions by William Stirling. Source: Wellcome Collection.

    70/602 (page 30)
    COMPOUNDS OF HJ5M0GL0BIN. [SeC. 18. (a) the addition of all acids, even by CO, in the ^esence of Pl«f J f ' i?rong aftahes; (c) all reagents which coagulate albumin, and by heat at ,0 - 80 ^'Ui'^KlmlZ'c ,H„N JeO, (Nencki and Sieher), is a bluish-black amorphous boit^.S ™sX?i4Ver cUt. of haemoglobin (dog). It is - - alcohol and ether ; soluble in dilute alkahes and acids, and m acidulated ether and '^'mAcid H«matin.-Lecanu extracted it from dry blood-corpuscles by using r^^'^Alk^-hsematin.-rif to the above solution ammonia or caustic soda be added on 1Ä gentty, the colour changes and the fluid becomes dichroic, showing addett, on neaiiuggBiii'io', ^ „„i„fir„i tlinrouchlv with air the spectrum of a greenish tmge. On ™xmg the ^J^S^^^^^ j^,t to the red side of oxy-alkali-hsematm is obtained, t.e one absorption oauu J ^. ^ ^ j ^•V ')'SJl:1fLXtnd s^>ectmta3^^ ^(trÄed^tul^mal^ :r H^moe Jomogen.-If the solution of alkali- hla inbeTeduced by ammonium sulphide, the ^^'^^^^^^^l^ZZ'lu obtained, viz., two absorption-bands ween D and E, but they are nearer ^I^VÄÄ^^ t^^r^ÄSmiä:-0: V.'^r^ to con- T\ ? Vkl a clear purplish-red solution is obtained, which shows two between D and E If water be added a brown precipitate is thrown down. When tMrprecJitate is dissolved in caustic soda, it gives a flmd which shows pur absorption-bands.] , ,. ^ •11 ... 4. nn Tf ro hp passed through a solution of oxyhfEmoglobm for a considerable Action of CO^-If CO. be pas^ prolonged the Hb is decomposed a Ir^^ärotgSLli^^^^ ^^^^ obtained when Hb is decomposed with acids, is observed (p. 30). An alkaline solution of hsematin, when reduced by tin and hydrochloric acid, yields urobilin (compare § 261). mSn +ThC1), with the formula C3,H3,ClN,Fe03 {NencU and S«6er). The pre e^ct of the e crystals is used as a test for blood-stains or blood solu ion S eyT- 26) are prepared by adding a small crystal of common salt to dry blood onaias° slide and then an excess of glacial aceticacid; thewholeis gently heated Ä*of gas are given off. On allowing the preparation to cool, the ''''^^^:'ltt.T:tlZ^^X are small microscopic rhombic Sve^yte^^^^^ mLes. The crystaUine forms of h^mm Se idlnticaHn all the different kinds of blood that have been examined. They aJe doSbly refractive; under the polarization microscope they are a glancing