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mercury-vapour quartz lamp is movably suspendedfrom the roof and at present only travels as faras the second cow, but it could easily be made totravel the whole length of the stall. With Vienneseconditions and prices this method has not beenfound too expensive. Attempts such as these areencouraging and point. we hope, to a time when itshall be compulsory for nursery milk, if not for allmilk, to be produced in such a, way that its vitamin Dcontent can be guaranteed to reach a definitestandard. At the same time it is essential thatthe cost of the milk should not be materially increased.

THE TEACHING OF BACTERIOLOGY INLONDON.

THE supply of young and well-trained bacteriologistsis unequal to the demand for them both in thiscountry and abroad, and this deficiency must beregarded as partly due to a lack of facilities for thetraining of suitable students. These facilities may be

provided either before or after graduation. Bacterio-logy may be recognised as a subject for a sciencedegree-as is now done at several of the universities-and thus form an important part of the under-

graduate’s training ; at Cambridge a course ofbacteriology can be taken, with pathological work,by those who go on to the second part of the NaturalScience Tripos. Alternatively, the instruction maybe given after medical qualification, and for this

purpose it is convenient to provide a whole-timecourse leading, perhaps, to a university diploma. InLondon, especially, it is desirable that such coursesshould be made available, if only as part of the schemefor making London the main centre of post-graduateeducation within the Empire. It is satisfactory,therefore, to learn of the opening in October nextof the Division of Bacteriology and Immunology ofthe new London School of Hygiene and TropicalMedicine. The board of management has decidedto start the work of this division in temporarypremises in Gordon-square, pending the completionofthe school buildings, and during this interim perioda whole-time post-graduate course in bacteriologywill be given under the immediate direction of Prof.W. W. C. Topley, who is to occupy the universitychair of bacteriology. and immunology in the School.It will not be possible to arrange instruction forcandidates for the Diploma in Public Health untilthe accommodation to be provided in the mainbuilding becomes available. In the meantimeinquiries about the bacteriological course should beaddressed to the Director of the London School ofHygiene and Tropical Medicine, at 37, Torrington-square, W.C.I. -

THE HAIRMYRES TUBERCULOSIS COLONY.mis institution chielly serves the middle ward ot

Lanarkshire, though patients are admitted from otherparts of the county and from outside. The report ofthe physician-superintendent, Dr. James Johnstone,shows that 306 patients were discharged during1926. Of these 149 were pulmonary and 133 non-pulmonary tuberculosis, and the remaining 24 included Ithree cases of syphilis, two of bronchitis, one each ofbronchiectasis and gastritis, and 17 in whom notuberculous lesion could be detected. Miners exceededother occupations among the patients, mining beingthe chief industry of the area. Of the 149 pulmonarycases, 51 belonged to the early maturity age-group(between 25 and 45 years). 59 per cent. had been illfor over four years, and 75 were in the Turban-Gerhardtstage 1. Of the 75 stage I. patients 24 showed arrestof the disease, of the 47 stage II. 6. and of the 27stage III. none. The average duration of stay was306 days for stage I., 330 for stage II., and 247 forstage III., and 21 per cent. had a positive familyhistory. The 133 non-pulmonary cases included78 of cervical glands and 20 abdominal cases, andthe average stay for children was from seven to eightmonths, one year being the duration aimed at. About30 per cent. gave a positive family history. The

discharges included 52 ex-Service men and 102 of the125 adult males discharged were registered fortraining. Thirteen per cent. of the adults admittedgave a positive ’Vassermann reaction as comparedwith 5 per cent. in the previous year.

It was a good summer for heliotherapy and satis-factory results were obtained among the children.Some 33 patients had artificial light treatment, thecases which did best being lupus, glands with dis-charging sinuses, and tuberculous abscesses of thesoft tissues (scrofuloderma). Dr. Johnstone commentson the fact that the more advanced broken-downglands did better than the enlarged glands whichhad not broken down. For 29 the carbon arc wasused, for three the mercury vapour, and for one both.Dr. Johnstone prefers the polar white flame positivecarbon with the solid ordinary negative carbon, whenused in the open carbon arc lamp. lie is inclined torecommend the installation of both types of lamp forclinics, the carbon arc for general and the mercuryvapour for local treatment. The average number ofscholars in the open-air school was 93. In the colonydepartments, the working hours varied from two tosix per day; the number of patients enrolled fortraining was for gardening 46, for the forest nursery’65, for the poultry farm 63, for the piggery 24, and forthe institution workshop 11. The guinea-pig depart-ment had a heavy mortality among the young stockfrom an obscure disease with diarrhcea as the chiefsymptom.The industrial workshops had 24 trainers in the

motor-repairing department, 19 in cabinet making,11 in boot repairing, and 9 in basket making. As

regards the first, the two motor lorries of the colonyare kept in order, while the Ford Motor Companykindly lends the latest type of chassis for the training ;and the three trainees who entered for the certificateof the Scotch Automobile Club were successful. Asregards the last, it is noted that there is a dearth ofgood basket makers in Scotland and that pigeonbaskets, for example, can only be procured in England.Approximate figures are given of after-results oftraining. Thus, of ten men trained in cabinet making,four are working at the trade, while two out of four,five out of ten, and 16 out of 20 are now working atthe basket making, boot repairing, and motor repairingrespectively for which they were trained.

SARCOMA OF THE RECTUM.

ACCORDING to Dr. J. H. Weeks, of the LankenauHospital, Philadelphia, who records an illustrativecase,]. sarcoma of the rectum is an exceedingly rarecondition. Among 100 malignant rectal tumoursHartmann and Quenu did not find one sarcoma;inquiries at 150 of the principal hospitals and museumsof Great Britain and Ireland produced only twocases, whilst among 500 patients operated on byD’Hochenegg from 1900 to 1907 for malignantgrowth of the rectum only four had sarcoma, thegrowth being of the melanotic type in two of these.Although approximately 100 cases of sarcoma of therectum have been recorded, the number would, inDr. Weeks’s opinion, be reduced by over a half if thequestionable cases were excluded. The growthusually begins in the submucous coat as a small,nodular mass, movable on the muscular coat andabsolutely independent of the mucosa which isusually intact. As it progresses it tends to invadethe mucosa, when ulceration frequently occurs.

Sarcoma is, as a rule, hard in consistence until ulcera-tion takes place when it becomes soft and spongy.Rectal sarcoma is much commoner in men than inwomen in the ratio of about 5 to 1 ; the ages recordedrange between 35 and 81 years. The symptomsdiffer only slightly from those of carcinoma, but thelatter ulcerates more quickly, gives rise to cachexiasooner, involves the lymphatics, and is practicallynever pigmented. Sarcoma generally causes less painthan carcinoma, and the spread is by the blood

1 Surgery, Gynecology, and Obstetrics, March, 1927.

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stream rather than by lymphatics. X rays andradium, Dr. Weeks considers, are valueless in thetreatment ; owing to the rapid and fatal metastaseswhich may take place, an early and very radicaloperation is indicated. His own case was that of aman, aged 40, who in spite of repeated operations Iand X ray treatment died of general sarcomatosisseven months after appearance of the first symptom.

WANTED, A SCIENTIST._1h advertisement in THE LANCET this week states

that, certain preliminary work with children of- 1-7 years of age having been done successfully at theMalting House School, Cambridge, the directors ofthe school propose to make a full-time and long-termappointment of a suitable man to introduce youngchildren to science and scientific method. The directorsare prepared to pay a salary that will enable a success-ful candidate to leave his present occupation whateverthat may be, an openhanded policy that indicatesawareness that the search for the man may be a difficultone. The advertisement sets out the nature of theproblems which he will have to tackle, from which itappears that the pedagogue-using the word in itsexact sense-will need to understand the urges ofthe childish mind, that he may discover how thesecan be best converted into a controllable instrumentof organised thought. The use of apparatus speciallydesigned for children is considered a necessity, and thismust be of a sort that lends itself to any modificationthat is required by the growing intelligence of thechild ; the methods of instruction are to be developedalongside of the developing child, his immature mentalprocesses being studied, and the demands of realitybeing graded to his capacity. The directors of the MaltigHouse School state that while they are willing toconsider applications for the post from the teachingprofession, they look rather to a man who has alreadyengaged in some sort of scientific work and whosereactions to children have not been influenced by thenecessity of teaching them. Sir Ernest Rutherford,P.R.S., Prof. Percy Nunn, and -.Nfr. J. B. S. Haldanewill assist in the final selection of a candidate for ahighly original appointment.

ARSENICAL CONTAMINATION OF FOOD.

SiNCE the great " arsenic in beer " scare of thirtyyears ago various sources of arsenical contamination offood have from time to time come to light. A not veryobvious source of this unpleasant element was pointedout in 1924 by G. D. Elsdon, who examined 51 wrappersof proprietary breads and found arsenic in nine ofthem. No enterprising daily journal has taken upthis matter under the attractive headline of " Deathin Wrapped Bread," but the question of arsenic inwrappings has been further investigated by Mr.T. Hedley Barry, who has published a paper in thecurrent number of the Analyst on Arsenic inPrinting Ink. He points out that the source ofarsenic in the wrapping papers was probably theprinting ink of the labels, which were blue, purple, andgreen, and as more brilliant colours are used in thewrapping of confectionery he has investigated someof the papers used. As confectionery is frequently ofa moist and sticky character and is largely consumedby children who are as frequently of a similar characterhe wisely suggests that the limit of arsenic should bealmost as stringent for the wrapper as for the wrapped.The practice of manufacturing confectioners isusually to stipulate from the printer that arsenic-freecolours shall be used, and he in turn passes on thisrequirement to the ink-maker. But arsenic may bepresent in the paper itself, and this may be a much moreimportant matter when the amount of printing issmall. The limit of arsenic proposed for beer- -namely, 1 in 700,000 or 1/10 gr. per gallon-wouldbe impractically rigid for printing materials ; zincoxide, for instance, of B.P. quality, with its limit of1 in 100,000, would not pass this test. It appears

that the wrapper seldom weighs more than 5 per cent.of the total weight and that about 0-5 g. per squaremetre is about the limit of ink on paper. :.B11’. Barryconsiders, having regard to these facts, that inkcontaining less than part of arsenic in 50,000 ofpigment may be used unconditionally, that thosecontaining between this limit and 1 in 20,0<)0 may beused with the less arsenical ones, and that noneexceeding this limit should be used at all. A varietyof colours examined fell mostly in the first class.Arsenic has been found, as is well known, in importedAmerican apples. Lendrich and Mayer (2 Unters.Leitungsm., 1926, lii., 441-457) have found arsenic indried pears (unpeeled) and even in partly peeledapple-rings. It is possible to be too exacting inrequirements as to the quality of food, but thesevarious sources of arsenic, like those of boric acid andsimilar preservatives in foods, need careful watching.It may be that the day is far distant when thepoisoner will kill his victim by means of a carefullychosen diet no one article of which comes within thescope of the Poisons Acts, but the detection of arsenicin food products and their adjuncts does point to thepossibility of injury to health of a kind to baffle thephysician as to its origin and nature and to complicatethe action of the drugs he may see fit to administer.So far as can be seen, it is likely as new methods oftreating, packing, and distributing food products are ‘

adopted new sources not only of arsenic but of otherpoisonous substances will need to be guarded against.This is a matter on which the Ministry of Health andthe medical profession should keep watch.

THE ENGLISH PUBLIC-HOUSE.

THE amenities offered by the public-house have-been made the subject of constant strictures in thepress, and not long ago in these columns the suggestionwas made by a writer that it was to the interests ofthe extreme temperance cause to see that no improve-ments took place, because with the betterment ofthe public-house there would disappear one of the-most obvious arguments against the use of alcohol.In Carlisle there will shortly be opened a model placeof refreshment in the heart of the town, replacingan old public-house, and it seems that the newestablishment may serve as an example of what canbe done to render the public-house a place of pleasantresort and a useful centre for the promotion of socialactivities. The premises are thoroughly well equippedand arranged in such a way that both sexes can usethem either in common or reserved rooms, but the-character of the public-house will be preserved-thatis to say, that, while such adjuncts to drink as bread-and-cheese, sandwiches, and cake will be provided,.there will be no restaurant. The house will, in short,be one " licensed for the sale and consumption onthe premises of intoxicating liquors," and, while notpretending to be anything else, will be a demonstra*tion of the fact that the business of the public-housecan be conducted with general propriety and withcomfort to all concerned. Those who know anythingabout public-houses, and those who have actuallyused them, know that this is not a new thing, andthat the wholesale denunciation of all public-houses,because some of them are revolting places, isunjustified. For the benefit of persons who havebeen led to think that the lowest type of drink-shopis typical of all public-houses, we may commend alittle book which has just appeared, describing fullythe English public-house.’ Mr. Selley does not enterthe arena of controversy upon the drink question.He states that the main business of public-houses isconcerned with the sale of intoxicating liquors, andthen details the results of a long investigation intothe various types of public-houses to be found intypical communities and localities, and into the usesmade of them by their frequenters. The effortstowards reform made by " the trade " itself are set

1 The English Public-house as It Is. By Ernest Selly.London: Longmans, Green and Co. 1927. Pp. 184. 5s.