—768 Defective Assimilation in Infants. [November^is the commonest thing to begin the treatment by an activemercurial purgative.Some experiments by Dr. Geofge Scott, of Southampton,Engl<strong>and</strong>, made on dogs, with a view of ascertaining whethermercury really increases the flow of bile, lead to the conclusionthat the hitherto-received opinions on this subject, are erroneous,<strong>and</strong> that calomel, at least, does not increase the biliarysecretion. Having ascertained the average quantity of bile secretedin twenty-four hours,- by collecting it in a vessel, after thecommon duct was tied, Dr. Scott administered calomel to thedogs, <strong>and</strong> then noted the amount of bile, the quantity of food<strong>and</strong> drink taken being the same. The four experiments of Dr.Scott all gave the same result,—that there was a, diminution inthe amount of bile secreted after the administration of large doses ofcalomel. If these experiments should be confirmed by futureones, a revolution may be expected in the treatment of diseasessupposed to be connected with a deficiency in the biliary secretion;<strong>and</strong> that much-abused organ, the liver, will be allowedsome rest from the incessant appeals which are made to it, as thesource of so many functional diseases. We are glad that Dr.Scott has undertaken to investigate the effects of calomel on theliver by direct experiment. We hope he will continue his researches,<strong>and</strong> extend them to other subjects connected with theaction of medicines. There is no department of our science inwhich so little is known, or in which more light seems capableof being thrown by direct experiment. Boston Med. <strong>and</strong> Sur.<strong>Journal</strong>, <strong>and</strong> N. Y. Monthly Review.Defective Assimilation in Infants— its Prevention <strong>and</strong> Treatment.Dr. Kouth read a paper on this subject before the <strong>Medical</strong> Societyof London. The object of the paper was to show thatmost of the mortality of infants was due to defective assimilation.Defective assimilation was almost always the result of want ofbreast milk <strong>and</strong> the use of injudicious food; the disease wasmost effectively prevented by supplying this milk. Dr. Kouththen detailed the result of breast milk exclusively given, artificialfood without breast milk <strong>and</strong> with it, or the development <strong>and</strong>mortality of children, from tables of Messrs. Merei <strong>and</strong> Whitehead;from which he showed that in proportion as breast milkpredominated, in proportion was good development observed,<strong>and</strong> vice versa. He then showed that the most frequent diseasesamongst children were abdominal diseases, occurring in the proportionof 23.4 per cent. ; developmental diseases in that of 8.8 percent, of all cases; rachitic diseases constituting 3.2 per cent. ; atrophyor marasmus, 5.2 per cent. He believed, however, that allthese were produced by defective assimilation, the former in most
1859.] Defective Assimilation in Infants. 769cases being sequela? of it; atrophy or marasmus being only themore marked <strong>and</strong> characteristic stage.Dr. Routh then described the disease as consisting of threestages: first, or premonitory, in which peevishness, some loss offlesh, occasional attacks of indigestion, acid eructations, &c.,were most prevalent; in the second stage, emaciation was moremarked, eyes became unusuall} 7 bright, much loss of digestivepower, sometimes with diarrhoea <strong>and</strong> lienterv ;third, or exhaustivestage, generally attended with diarrhoea, aphtha?,frightful emaciation, complete loss of digestion, &c. Somtimesthe disease from the second stage passed on to tuberculosis, rachitism,<strong>and</strong> most developmental disorders, <strong>and</strong> not to the thirdstage.Causes.—The predisposing causes were—hereditary tubercularhabit, <strong>and</strong> exanthemata; exciting causes—bad air, want ofcleanliness, injudicious food, <strong>and</strong> especially an atmosphere contaminatedby too many children being congregated together.Post-mortem Appearances.—Three kinds: emaciation verygreat, loss of adipose, cellular, <strong>and</strong> muscular tissue, in all varieties;but in one, where diarrhoea has been present, red patches,or aphtha? over the alimentarj- mucous membrane, these aphtha?often containing the o'idium albicans. In other cases, also withdiarrhoea, the mucous membrane exuding a reddish colouredmucus, intensely acid. In others, without diarrhoea or with it,Peyers gl<strong>and</strong>s projecting, <strong>and</strong> enlarged in patches, as in Asiaticcholera. In all, undigested matter in canal, with very fetidfecal matters.The disease seems to be gradual, passing on to entire loss ofjwimary assimilation : the scondary still persisting, althoughinactive from want of assimilable matters to take up. Albuminous,starchy <strong>and</strong> oily matters were not digested.The treatment consists in supplying fatty acids <strong>and</strong> alreadyartificially digested animal, <strong>and</strong> occasionally vegetable substances,especially human milk. If this could not be sucked, itshould be collected in a cup <strong>and</strong> given by the spoon. I)r.Eouth strongly animadverted here upon the absurd dogma, thatit is wrong to mix human <strong>and</strong> cow's milk. He, on the contrary,believed the plan not only safe, but the very best practicein many cases, <strong>and</strong> the only means of saving an infant's life.Simple juice of meat, <strong>and</strong> this with vegeto-animal food, he hadfound most useful in fulfilling these indications. The remedieswere of two kinds : 1st. Those calculated to increase cell growth<strong>and</strong> development. Phosphate of soda producing au emulsion withfats, thus allowing of their assimilation; chloride of potassium,to dissolve carbonate of lime;phosphate of lime, to enable theblood to take up more carbonic acid, <strong>and</strong> thus hold in solutionmore carbonate of lime, (these substances severally strengthen-
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