84 THE PRECIPITIN TEST FOR BLOOD. 



years old on a razor, gave, on the addition of human anti-serum, 

 a marked colour in twenty minutes and three minutes respec- 

 tively. Blood three years old on the lining of clothes gave a 

 heavy cloud after sixty minutes, and blood-stained hair twenty- 

 eight years old a similar cloud in five minutes. In each case 

 the control anti-sera or normal sera gave no results. 



Analytical Chemists' Association. — There has 

 lecently been established, with headquarters at Johannesburg, an 

 institution for the purpose of encouraging the knowledge and 

 study of analytical and industrial chemistry, and upholding the 

 status and interests of the profession of technical chemistry, as 

 well as for other kindred objects. For the present this institu- 

 tion, which is styled " The South African Association of Ana- 

 lytical Chemists," will confine its activities within the Union of 

 South Africa, and will be independent of, and not affiliated to, 

 any similar institution. The Council of the Institute of Chemis- 

 try of Great Britain and Ireland has expressed its sympathy with 

 the objects of the new Association, and will be prepared, as far 

 as possible, to support its endeavours on behalf of the profession. 

 Although the headquarters of the Association have been fixed in 

 Johannesburg, and therefore the principal officers have been 

 selected from among gentlemen resident in that neighbourhood, 

 the greatest care has been taken to make the Association full) 

 representative of the whole Union, and the Union Government is 

 being approached with a view to securing recognition of the 

 Association as the official body representing Analytical and 

 Applied Chemistry within the Union. The officers and Council 

 of the Association are as follows : President, Dr. J. McCrae, 

 F.I.C., Government Analyst, lohannesburg; Vice-President, 

 Prof. G. H. Stanley, A.R.S.M., F.I.C., South African School of 

 Mines, Johannesburg; Hon. Treasurer, A. Whitby, Consulting 

 Analytical Chemist and Metallurgist, Johannesburg; Hon. Secre- 

 tary, las. Gray, F.I.C., Analytical and Consulting Chemist, 

 Johannesburg; Council, Prof. R. B. Denison, M.A., Ph.D., D.Sc. 

 Natal University College, Maritzburg, J. S. Jamieson, F.I.C.. 

 Government Chemist, Durban, Dr. C. F. Juritz, M.A., F.I.C.. 

 Chief Chemist, Government Analytical Laboratory, Cape Town; 

 Prof. R. Marloth, M.A., Ph.D., Analytical and Consulting 

 Chemist, Cape Town, and Dr. J. Moir, M.A., F.C.S., Chemist to 

 the Mines Department, Johannesburg. 



