PRESIDENTIAL ADDRESS. 13 



Mr. O. Rossbach. In 1872 he was engaged on construction 

 work in connection with the building of the iron wharf at 

 Darling Harbour, as Engineering Assistant to the Clerk of 

 Works, for a period of three years. He was then engaged 

 as Engineering Surveyor on some of the largest of the water 

 supply schemes, and did a great deal of this work in con- 

 nection with the Sydney Water Supply. He was also 

 engaged as Constructing Engineer afterwards on the same 

 work. The survey of the Goulburn Water Supply was also 

 carried out by Mr. Josephson, in accordance with the 

 recommendation of the late Mr. W. Clarke, who was 

 engaged in England to advise the State Government in 

 connection with the matter of water supply both for Sydney 

 and several of the large country towns. Mr. Josephson 

 acted as secretary to this Commissioner, during his visit 

 to the State. 



Mr. Josephson made an accurate trigonometrical survey 

 of the Hawkesbury River, and also of the upper portion of 

 the Parramatta River in connection with the subject of 

 prevention of damage by floods. He also acted for a short 

 time as principal assistant engineer, Field Staff, in the 

 Metropolitan District, during the absence of Mr. Alfred 

 Williams, m. inst. c.e. Mr. Josephson retired from the Service 

 early in 1896, and has since practised as a Consulting 

 Engineer and Surveyor in Sydney. He was a Licensed 

 Surveyor of many years standing, and has also been an 

 Associate Member of the Institute of Civil Engineers since 

 1879. He was the author of a paper on the History of the 

 Floods in the Hawkesbury River, read before our Society. 

 He was born on 19th December 1852, at Sydney and died 

 at Killara on 3rd October, 1911. 



Houlton Harries Voss was born at Swansea, South 

 Wales, on the 31st July, 1826, and died at Craigend House, 

 Darlinghurst, Sydney, on 3rd August last. His father and 

 grandfather were for many years the only bankers in the 



