THE HEIGHT OF BEN LOMOND. 



By L. F. GiBLiN, B.A., E. L. Piesse, B.Sc, and 

 H. R,. Hutchison, Authorised Surveyor. 



(Read 14th April, 1913.) 



Map 



In a paper read before the Society in 1907(^), two of ua 

 gave an account of observations made with aneroids on 

 Ben Lomond in 1906 and 1907 with the object of deter- 

 mining the difference of height between Legge Peak(^), 

 the highest summit in the northern part of the Ben 

 Lomond range, and the trigonometrical station at the south- 

 ern end of the range. The trigonometrical station is stated 

 on the official maps of Tasmania to have a height of 5010 

 feet; Cradle Mountain is stated to be 5069 feet, and the 

 Ben Lomond station comes next below it, being thus the 

 second highest of the officially recorded summits. 



The observations in 1906 made Legge Peak 140 feet 

 higher than the trigonometrical station; and in 1907, 160 

 feet. From the former, the height of Legge Peak was 

 5150 feet, from the latter 5170 feet, and the mean of the 

 two results was 5160 feet. If this result were correct 

 Legge Peak was nearly 100 feet higher than Cradle 

 Mountain, and was the highest known summit in Tas- 

 mania. But the result had been obtained with aneroids 

 not of the best pattern for this purpose, and not used in 

 the best conditions, and it was desirable that the difference 

 of height should be ascertained by survey. An oppor- 

 tunity to revisit the mountain did not occur until 1911. 

 A survey was then made which in part confirmed the 

 height obtained in 1906 and 1907, but the result was not 

 conclusive, and another survey was accordingly made in 

 1912, and this placed the height of Legge Peak beyond 

 doubt. 



(0 L. F. Giblin nnd E. L. Piesse, Note on the Height of Legge Tor 

 {Proc. Boy. Soc. Tas. 1906-7, xxxvii.-xL). 



(*) The name Mt. Legge was proposed :n the paper just mentioned, but 

 In the title of the paper the name was altered to Legge Tor as this was 

 understood to be the form desired by the Department of Lands and Sur- 

 veys. In the County chart Cornwall Xo. 3 the summit has been called 

 Leg^e Peak. 



