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Sugar per 1,000 parts.
By ammoniated cupric






IV. Blood from sheep, in fresh state, with sugar added

After standing for 7 hours at slightly raised

After passage of oxygen for 7 hours at

slightly raised temperature
After passage of carbonic acid for 7 hours at

slightly raised temperature
After passage of hydrogen for 7 hours at

slightly raised temperature
V. Blood of sheep, in fresh state, with sugar added

After standing 64 hours at 100° F.
After the passage of oxygen for 64 hours at

100° F.....
After the passage of carbonic acid for 6}

hours at 100° F.....






VI. Blood from sheep, in fresh state, with sugar

added ..
After standing 64 hours at 100° F...
After the passage of oxygen for 6 hours at

100° F.
After the passage of carbonic acid for 61

hours at 100° F..



1.324 0.667

VII. Blood from 'sheep, in putrid state, with sugar

After standing 6 hours at 100° F.
After the passage of oxygen for 6 hours at

100° F.
After the passage of carbonic acid for 6

hours at 100° F.



VIII. Blood from sheep, in putrid state, with sugar

After standing 6 hours at 100° F.
After the passage of hydrogen for 6 hours

at 100° F.



The following conclusions may be expressed as constituting the issue of the results recorded in this communication :

That the results bearing on the physiology of sugar in relation to the blood derived from the application of the gravimetric process, and given in my former communication to the Royal Society (vol. xxvi, p. 346), are confirmed by those yielded by the ammoniated cupric test, described by me in the “Proceedings,” vol. xxviii, p. 260.

That the disappearance of sugar from the blood after withdrawal from the system takes place in the gradual manner that might be expected from the effect of ordinary decomposition, and presents nothing to support any conclusion regarding the destruction of sugar in the blood as a physiological phenomenon.

That there appears to exist a reducing substance besides sugar in the blood which is of a sufficiently stable character to resist the effects of advanced putrefaction. Expressed as sugar, it amounts to from -200 to 300 per 1,000. These figures, therefore, would appear to require to be deducted from those which have been given as representing the amount of sugar present in the blood.

That the passage of a current of oxygen through the blood does not exert any appreciable effect in the direction of oxidation of the sugar.

Presents, April 3, 1879. Transactions. Devonshire Association for the Advancement of Science, Literature, and Art. Index to tenth volume of the Transactions. 8vo.

The Association. London :-Institution of Civil Engineers. Minutes of Proceedings. Vol. LV. Session 1878–79. Part 1. 8vo. London 1879.

The Institution. Moscow :-Société Impériale des Naturalistes. Bulletin. Année 1878. No. 3. 8vo.

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Abdominal circulation, forces concerned Chelone Midas, 329.
in (Hicks), 489.

Chemical composition of aleurone grains
Acoustics, studies in : I. On the syn. (Vines), 218.

thetic examination of vowel sounds Chemical equivalence, researches on:
(Preece and Stroh), 358.

Part I. Sodic and potassic sulphates
Aleurone grains, on the chemical compo- (Mills and Walton), 268; Part II.
sition of (Vines), 218.

Hydric chloride and sulphate (Mills
Anatomy of the skin, on some points and Hogarth), 270.

connected with the (Thin), 251. Chromospheric lines, preliminary note
Anniversary meeting, 30th November, on the substances which produce the
1878, 42.

(Lockyer), 283.
Astacus fluviatilis, physiology of nervous

Young's list of, discussed,
system (Ward), 379.

No. I (Lockyer), 432.
Auditors, election of, 1 ; report of, 42. Clarke (G. S.) and McLeod (H.) on the
Auwers (A.), elected, 461.

determination of the rate of vibra-
Ayrton (W. E.) and Perry (J.). The tion of tuning-forks, 291.
magic mirror of Japan. Part I, 127. Clarke (Rev. W. B.), obituary notice of, i.

the contact theory of voltaic Coal-dust, its influence in colliery explo-
action : No. III, 421.

sions, No. II (Galloway), 410.

Coal-measures, organisation of the fossil
Balance, on a method of using the, with

plants in (Williamson), 445.
great delicacy, and on its employment

Cockle (Sir J.) admitted, 102.
to determine the mean density of the

Colliery, explosions, influence of coal-
earth (Poynting), 2.

dust in, No. II (Galloway), 410.
Balance-sheet, 70.

Comatulæ of the Challenger ” expedi-
Blunt (T. P.) and Downes (A.) on the

tion, report on (Carpenter), 383.
influence of light upon protoplasm,

Conroy (Sir John), some experiments on

metallic reflexion, 242.
Bonney (Rev. T. G.), admitted, 1.

Contact theory of roltaic action : No. IV
Bottomley (J. T.) on the thermal con-

(Ayrton and Perry), 421.
ductivity of water, 462.

Convoluta Schultzii, physiology and his-
Brongniart (A. T.), obituary notice of, iv.

tology of (Geddes), 419.
Butlin (H. T.) on the nature of the fur

Copley medal awarded to J. B. Bous-
on the tongue, 414.

singault, 13.
Crayfish, physiology of the nervous sys-

tem (Ward), 379.
Candidates for election, list of, 6th Cremona (L.) elected, 461.
March, 1879, 378.

Crookes (W.) on repulsion resulting
Carpenter (P. H.), report on the Coma- from radiation : Part VI, 35.

tulæ of the “ Challenger" expedition, -, on the illumination of lines of mole.

cular pressure and the trajectory of
Cartilage, on hyaline, and deceptive molecules, 103.

appearances produced by reagents, as on electrical insulation in high
observed in the examination of a car-

vacua, 347.
tilaginous tumour of the lower jaw contributions to molecular physics
(Thin), 257.

in high vacua, 477.
Challenger expedition : report on Cross (Right Hon. R. A.) elected, 461 ;
Comatulæ (Carpenter), 383.

admitted, 483.
Charcoal, absorption of gases by (Smith), Cupric (ammoniated) test for sugar

(Pavy), 260.

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