A NEW GASOMETRIC METHOD FOR THE QUANTITATIVE DETERMINATION OF FREE HYDROCHLORIC ACID IN THE GASTRIC JUICE.

A NEW GASOMETRIC METHOD FOR THE QUANTITATIVE DETERMINATION OF FREE HYDROCHLORIC ACID IN THE GASTRIC JUICE.

36 recently travelled in Egypt, have consented to act upon it. Dr. W. Page May, of 9, Manchestersquare, London, W., has been appointed honorary secre...

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recently travelled in Egypt, have consented to act upon it. Dr. W. Page May, of 9, Manchestersquare, London, W., has been appointed honorary secretary of this local committee, and to him all questions on the subject should be addressed. In wishing success to the first Egyptian Congress of Medicine we may remind those of our readers who are fortunate enough to be able to take a winter holiday of the saying of an old Jewish physician : " He who hath not seen Cairo hath not seen the world. Her soil is go d, her Nile is a marvel, her air is soft with an odour above aloes, refreshing the heart And how should Cairo be otherwise when she is the Mother of the World" moat of whom have

tr treatment in these two cases are attributed

by Dr. Veasey to early administration of mercury and iodides, as it has b{ been proved that in cases of such neuritis occurring more a year after infection recovery was rarely obtained. th than

th the

THE WASTE OF WATER PARIS

IN CITIES.

one of the cities which were held up as London of the beneficial effects of a municipal to examples and M. chef de bureau of water-supply w Prefecture of the Gaston Cadoux, t the was Seine, good enough to come, a1 the request of the London County Council, that he at was

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m might instruct Lord Llandaff’s Commission1 on the question. Le Figaro of June 28th, which is usually well THE PREVALENCE OF SMALL-POX. on in informed all matters Parisian, gives an amusing sk, of the effects of the heat on the chief director THE following figures show the number of patients sketch He will not agree admitted to the various hospitals of the Metropolitan of the water-supplies of the city. wi the climatic conditions are with his that the mentioned :-On Board for dates secretary Asylums Saturday, hot weather. He and hates -June 28th, there were 14 fresh cases ; on Sunday, the 29th, su fact, superb-in dry sel from the windows of his office a profusion there were eight fresh cases ; on Monday, the 30th, there sees of vegetables and of flowers. The vegetables are washed ’were 12 fresh cases ; on Tuesday, July lst, there were 14 - fresh cases ; and on Wednesday, the 2nd, there were six in water and they will be cooked in water, the flo will be put into water to keep them fresh. In a fresh cases. For the week ending June 28th 15 fresh cases flowers fe days the water will fail and then they will blame him. - of small-pox were notified in the county of Essex, and owing few to the marked diminution in the number of cases the weekly It had been prophesied that there would be no heat and no list hitherto issued by the medical officer of health will be dr drought before the end of June and he did not therefore - discontinued for the present, its place being taken by a ex expect to have to take any "special measures " before July. Tl The return. secretary inquires as to the nature of the special ,monthly measures which will be adopted. "What naturally would OPTIC NEURITIS PRIMARILY PRODUCED BY limit the be ’1 We shall they consumption of water, we SYPHILIS. shall put the consumers on a fixed allowance, we shall close th, conduits. That is the best way of preventing the OPTIC neuritis primarily resulting from syphilis is decidedly the Pa Parisians from rare and, indeed, its existence has been denied by some being without water." If the I’igaro is not to( too severe on the director of the Paris water-supplies it writers. In the majority of cases of optic neuritis following ml must his views as to the waste of water be admitted that syphilis of some years’ standing the neuritis has been accord ac with those of some of the present observed to follow the formation of a cerebral gumma, but very accurately water directors and of some of their in the class of cases referred to below the antecedent condi- ml metropolitan company en tion was one of recent syphilis directly producing the engineers. symptoms in question. Leber states that the optic neuritis of primary syphilis is different from that secondary to A NEW GASOMETRIC METHOD FOR THE QUANTITATIVE DETERMINATION OF FREE HYDROcerebral gumma, but the former disease is, as already stated, CHLORIC ACID IN THE GASTRIC JUICE. so rare that Horstmann (1889) was able to collect only eight A KKOWLEDGE of the amount of free hydrochloric acid In the American Journal of cases from medical literature. in the gastric juice is frequently an important the Medl,cal Sc’iencÞs for June Dr. C. A. Veasey of Phila- present pr in diagnosis and many analytical processes have el, element two of with cases the disease, together delphia reports ac The tiri-t was of a the results of treatment. case that accordingly been devised for this purpose. The well-known of Sjoqvist depends on the fact that when gastric method been who had from man, aged 45 years, suffering growing m is for a of and diminution of visual dimness ju juice evaporated with barium carbonate and the residue sight acuity media the The ocular were clear and g ignited the organic acids are destroyed, but the fortnight. pupillary gently be chloride produced by the action of the free hydroreactions were normal. Ophthalmoscopic examination showed barium cl chloric acid remains unaffected and can be estimated as a moderate degree of papillitis, more marked in the left usual. u: This had had a The chancre disc. may obviously be done either by precipitation syphilitic optic patient and weighing or volumetrically, but Professor E. Riegler of three months previously, the infection being followed by the at é in Roumania, has suggested a gasometric process - development of a characterbtic cutaneous rai-h and mucous JJassy, which w he considers to be simpler than the preceding and The field of vision was contracted symmetrically patches. m but there was no central scotoma. The patient had been mord applicable for clinical purposes. His method, which is in the Deutsche Medicinische Wochenschrift described He was with now treated ’taking mercury irregularly. oi June 19th, is based on the reactions (1) that barium mercurial inunctions and rapidly increasing doses of of ic is precipitated when a solution of barium chloride ,potassium iodide. Improvement began in a week and in iodate two months the optic neuritis had disappeared and vision is treated with iodic acid, and (2) that nitrogen is evolved from a mixture of barium iodate and hydrazin The second case was that of a woman, aged e’ was normal. Sl He mixes 10 cubic centimetres of gastric juice ,43 years, the wife of the above patient. She suffered from sulphate. .gradually increasing inability to see objects. Ophthalmo- wwith half a gramme of barium carbonate in a platinum c: thoroughly with a glass rod, evaporates to dryness in scopic examination showed commencing papillitis in the right capsule t] water bath, and ignites gently till the ash becomes grey. eye and moderate papillitis in the left. The patient had the I residue is extracted with a small quantity of boiling been infected with syphilis by her husband and had been The taking mercury irregularly since then. The field of vision vwater, which must not exceed 40 cubic centimetres, and this solution is treated in a small flask with five cubic centimetres was contracted only in the left eye. She was put through s’ the same treatment as her husband with the result that the oof a 6 per cent. solution of crystallised iodic acid, shaken, papillitis subsided in six weeks and vision was restored to - 1 At the twenty-second sitting of the Royal Commission on the The very favourable results of London the normal soon after. I Water-supply, May 16th, 1898.

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37 v and left at rest for a quarter of an hour. The precipitated were employed; of these 60 were left without treat-n and they all, without a single exception, conbarium iodate is then washed on a filter until the total ment, filtrate and washings measure 100 cubic centimetres, after tracted t malarial disease. The other 60 were given prevent which the filter with its contents is placed in the inner com- tive "esanophele"" regularly and have remained healthy. partment of the evolution flask of a nitrogen apparatus-’]The Campagna around Ostia is being re-peopled, remarks namely, either a Knop-Wagner azotometer or a Riegler’s IDr. Guiart in conclusion. Instead of migrating as usual the i stand fast with their families and all keep in urea apparatus. 40 cubic centimetres of a 2 per cent. inhabitants health. No ague cakes are to be found ; the people all solution of hydrazin sulphate are placed in the outer good s 1 of is look from Rome now come to Ostia to spend the evolution which then well. Citizens flask, compartment The anopheles continues to sting but no immersed in a vessel of water at the temperature ttheir holidays. 1 of the room. After the lapse of 10 minutes the usual longer finds germs to disseminate. flexible air-tight connexions are made between the flask and the graduated burette of the apparatus, and the flask is violently shaken for half a minute at short intervals until its THE MEDICAL SERVICE OF INTERCESSION FOR THE KING. contents, which at first were yellow from liberated iodine, THE Guild of St. Luke organised on behalf of the become ultimately colourless. For each two molecules of hydrochloric acid six atoms of nitrogen are evolved. The imedical profession a service of intercession for His Majesty volume of nitrogen after reduction to 0° C. and 760 milli-tthe King at St. Paul’s Cathedral on the evening of metres’ pressure gives when measured in cubic centimetres .July 2nd. Although but short notice had been given and multiplied by the coefficient 1’083 the weight of the iupwards of 400 medical men were present, including Sir hydrochloric acid in milligrammes, to which 3’2 milli-Dyce Duckworth, Dr. Symes-Thompson, Mr. George Cowell,. grammes must be added for the amount of barium iodateand Mr. Hutchinson. The music was directed by the Rev. dissolved in 100 cubic centimetres of filtrate and washwater. J. B. Croft of St. Matthew’s, Westminster. The Litany was in procession and owing to the occasion being i If the foregoing analysis be performed without igniting thesung residue left on the water-bath the result will give the totalpenitential the procession went by way of the north acidity of the gastric juice expressed as hydrochloric acid.aisle. The clergy wore red copes and the Doctors of Medicine wore their scarlet. At the conclusion of the of the order which or less followed the Office more service, of the Compline, following message was sent to the Queen: THE CAMPAIGN AGAINST PALUDISM IN THE " The Guild of St. Luke, associated with many members of ROMAN CAMPAGNA. 1the medical profession, having assembled in St. Paul’s IN order to investigate the progress of the campaign