BMICATLst 309 MEDICAL JOURNAI. thev may become as nearly as possible independent members of the community. Clearly the present increased employment of mental defectives is due to the labour shortage, and when the labour market becomes normal, then these men will once more become entirely dependent on the State unless some action is taken now to safeguard their future.-I am, etc., Gloucester. J. S. COOKSON. Present Practice of Diphtheria Immunization SIR.-It is disturbing to read in Dr. J. L. Blonstein's article on a wartime nursery (Feb. 17, p. 230) that out of 50 children

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