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

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.

72/602 page 32

$^2 PROTEIDS OF THE STROMA. [SeC. 20. For their occurrence in the urine m jaundice (§ 180), and m the sputum u ^^^j 21 (B) THE COLOURLESS PROTEID OF HiEMOGLOBIN-It is closely related to globulin; but while the latter is precipitated by all acids even by CO^, related giuu re-dissolved on passing 0 through it, the proteid of hemoglobin, on the other hand, is not dissolved after precipitation on passing through it a stream ot U. As crystals of haemoglobin can be decolorised under special circumstances, it is probable that these owe their crystalhne form to the proteid which they contain. Landois placed crystals of Lmodobin along with alcohol in a dialyser, putting ethei ( ] acidSated with sulphuric acid outside, and thereby _ obtained U cSou les^^^^ [If ^^ogs blood be sealed up on a microscopic Fig. 27. slide along with a few drops of water for several days, long colom- TT d . crystals 1 ss acicular crystals are developed in it {SUrhng and Bnto).] tSlDS OF THE STROMA.-Dry red human blood-corpuscles t i. fVom 5 10-12-24 per cent, of these proteids, but little is known about contain from o ^- ^^ 1 globulin, which is combined with a body resem- Sg Sn^(rÄ <^ stroma tends to form masses which resemble fibrin. Tlln found a body resembling mucin in the nuclei of red blood-corpuscles, and Miescher water-or other reagents,_ such as (^^Llute a^^^^ colourless less soluble part which they contain is f f J^^. ^«.^^^^^^^^^ The tCiata retain somewhat the shape of the :^itl—dL,^^^^^^^^ P-teid, lecithin, Cholesterin, and inorganic salts (chiefly potassium pliosphate ] defibrinated blood with a very large volume of 1 per [The stromata are obtained by^ i^^^^^^^^^ ^^^^^^^^ ^^.^^ ^,^^^^,ta with various sahne cent, sodic chloride. The proteias oau ^^^^^ _ media, e.g., Na SO, (^^^^ -^^^^i^^.^ee^^^^ Hali kirfon cllls ^cell-globulin-a globulin The saline extract f ^t^^^^^!*Xre ^^^^ by salts and other reagents, and m that in heat-coagulation ^^ejpe jtm^' P[^^^^^^ derived from lymph-cells or whi e ferment activity resembles P^^f^^^^^^^^^^^^ ..^d cell-globulin are probably identical. CeU- blood-corpuscles (p. 33), so that sw^^^^ minute traces, nor does nuclein or nucleo-albumm Albumin is either absent or oniy present in n ' certainly absent.] . ^ appear to be present, ^^d^. ^^^^^^^^^^^^^^^^^^ i.e., it 'can cause the_formation o '[The proteid cell-globulm has fi^^^^^^^^ pericardial fluid, but it is not decided fibrin to take place m a suitable ^^^iid. ^-.^^ identical or merely in close relationship with whether the ceU-globuUn and .fi^nn-terme^^^^^ the former view (Ramburto.i). one another, the balance of ^^^.^^J J ^^e^^^^^ the proteids of the coloured and the phosphoric acid, two atoms of ,11 ^^^«P^^y^X Syc^^^^^^^^^^ phosphoric acid {§ 250). Si„rd^:v.tÄoÄ^^^ ™ from the amount of phosphorus in the ethereal extract. IV Water (681-63 per 1000—a ScAmic^O- . Y.' Salts (7-28 per 1000), chiefly ^or.vo^-'^.oipo^^^^^^^$