Public Health Laboratory Practice [antikvár]

In the United Kingdom, the Medical Officer engaged in public health work seldom practises the methods of chemical analysis which he has learned during his course of training. In countries liowever where public health work is less advanced or is just beginning to develop it may be otherwise. The Medical Officer of Health may then be called on to initiate a chemical laboratory and also to train and supervise a staff in the methods of analysis of water, sewage and foodstuff's. Our object in compiling" this manual has been to provide the public health worker both during his D. P. H. Course and afterwards in his practice, with a book wherein he will find readily to his hand' most of the methods of practical analysis which he will likely be required to undertake. We have endeavoured to give clear descriptions of these processes in definite terms, and without too much discuss on or explanation. For the same reason we have, when possible, limited ourselves to one method. The methods selected are those which we have found to be suitable in our practice in the Bengal Public Health Laboratory, in the Calcutta School of Tropical Medicine and Hygiene, and in the Laboratory of the Chemical Examiner to the Government of Bengal. We have consulted standard works of references like Lewkowitsch's " Oils and Fats," and x^llen's " Organic Analysis." The source of any particular method selected is acknowledged in the text, and references given to the original papers in the " Analyst " or elsewhere. Our thanks are due to Col. Fry, C.I.E., D.S.O., I.M.S. and to Mr. N. L. Banerji, A.I.C., for assistance and advice in reading the proof sheets. A. D. S. T. C. B.