XXXVl SOUTH AFRICA MEDAL. 



50. "Pernicious .-calc : the present position." Unkon Agric. Journal. 1913. 



51. "Warble flies." Viiiou Agric. Jounial. 1914. 



52. " Cyanide fumigation of citrus orchards." Agric. Journ. of S.A. 1915. 



53. " The locust menace." Agric. Jourii. of S.A. 1915. 



54. " Plant killing insects : the Indian cochineal." Agric. Joiini. of S.A. 



T9i.> 



55. " Scale insects." Agric. Journ. of S.A. 1915. 



56. " The Phoracantha Beetle." Agric. Joiirii_. of S.A. 1915. 



57. "Cyanide for fumigation pnrposfes." ■* Agric. Journ. of S.A. 1915. 



After the conclusion of the Presidential Address in the 

 Town Hall, Pretoria, on Tuesday. July 6, 19 15, the President, Mr. 

 R. T. A. Innes, handed the South Africa Medal and the award 

 of £50 to Dr. C. F. Juritz, in trust for Mr. Lounsbury, who had 

 left South Africa on a six months' tour in Australia and the 

 United States on recovering from a serious illness. In doing so 

 the President made the following additional statement : — 



" The scientific work undertaken by Mr. Lounsbury is lx)th 

 of biolo_2^ical — and what appeals to the people of this country in 

 particular — of economic value. He was the expert who under- 

 took the first extensive investigations into the life cycle of the 

 various tick diseases in South Africa, and so. laid the basis of all 

 further work undertaken on similar lines by various investigators. 

 He demonstrated in a series of careful and almost classical ex- 

 periments the connection between the Bont Tick (Ambly omnia 

 hebrcFum) and the disease of Heart-water in goats and cattle. 

 By a series of experiments he proved that the dog tick (Hcrnia- 

 physalis Icachi) was the carrier of biliary fever in the dog. The 

 solution of the ])roblem was of a particularly intricate nature, 

 which speaks highly for our medallist's endurance and keenness 

 in research. 



" His investigations on the transmission of East Coast Fever 

 by tick, corroborated and supported by the investigations of other 

 scientists, helped to form the basis of legislation against the 

 disease, and established the introduction of rational dipping l^oth 

 for the eradication of the tick and the disease. Mr. Lounsbury, 

 assisted by the Veterinary Department of the Cape, was respon- 

 sible for the first systematic dipping experiments undertaken on 

 scientific lines, and the introduction of arsenate of soda, recom- 

 mended by him, helped to solve the dipping problem in a practical 

 manner. This fact deserves to be especially emphasised, because 

 in these times of rapid progress the inventors of new ideas are 

 easily overlooked or forgotten. 



" South Africa is not ungrateful. We, the members of the 

 South African Association for the Advancement of Science, bear 

 in mind that neither Mr. Lounsbury nor any other scientific 

 worker asks for reward. All that the scientist asks is enough 

 to live on modestly, with a sufficiency of leisure to enable him 

 to indulge in his researches, and if he is fortunate in securing 

 the interest of the State in his work he is happy. 



" I read recently in an American scientific journal (Science, 

 14 May, 191 5) that each scientific worker increases the material 

 wealth of the world bv about £20,000,000 — or, in other words, 



