Correspondence JUBRNAL 327 adopt this approach to lactation inhibition and suppression routinely in the department. We wish to thank Dr. John M. McGilchrist, medical director, of Messrs. William R. Warner and Company Ltd., not only for his encouragement and help in this survey, but also for supplying the Estrovis tablets; and we also wish to thank the midwives of the department for their most willing co-operation. -We are, etc., DAVID BROWN.