140 TEE ANALYST. INSTITUTE OF CHEMISTRY OF GREAT BRITAIN AND IRELAND. AN examination in biological chemistry will be held at the Laboratories of the Institute in October, 1904. The examination will be open to candidates whose applications for admission to the final examination have been accepted by the Council, to candidates who have pawed the intermediate examination, and also to Fellows and Associates of the Institute who desire to obtain a certificate of competency in this branch of work. The examination will extend over four days, and may be theoretical, practical, written and oral. The syllabus will include biological chemistry, with special reference to the chemistry and bacteriology of foods, water, sewage, and effluents, and to the practical applications of biological chemistry to industries. The course of study recommended and copies of the exercises set at the examinations in biological chemistry held in October, 1901, and in October, 1903, can be obtained from the Registrar, 30, Bloomsbury Square, London, W.C.