74 



Rules and Tables adapted 



the tribe to whom the female belonged. This concludes the 

 the ceremony, and the young man then returns with his wife 

 to his own tribe. He is, however, laid under this peculiar in- 

 junction, that he must not see any more his mother-in-law ; and 

 the following circumstance in connection with this fact, has 

 been related to me by Mr. Grant, an eye-witness. "A mother- 

 in-law having been descried approaching, a number of leubras 

 formed a circle around the young man, and he himself 

 covered his face with his hands this, while it screened the 

 old lady from his sight, served as a warning for her not to 

 approach, as she must never be informed by a third party of 

 the presence of her son-in-law." 



The natives, however, of this, as of every other settled 

 part of Australia, are fast disappearing before the rapid 

 encroachments of the whita man ; in perfect accordance with 

 that universal but mysterious law which governs civilization 

 wherever the white man has planted its flag, sweeping the 

 backward races from the face of the earth. 



Akt. VI. — Original Rules and Tables adapted to Cases of 

 Sidelong Ground in the Setting Out and Computation of 

 Railway Earthworks, By Clement Hodgkinson, C.E., 

 District Surveyor. 



Having originally investigated and computed the following 

 formulse and tables for my own use, I venture to submit 

 them to those members of the Philosophical Society who 

 belong to the Engineering Profession. 



Before giving my tables for determining the side distances 

 that define, on sidelong ground, the edges of railway cut- 

 tings and embankments on both sides of the central line of 

 equidistant stakes, I will briefly state the methods that 

 have been generally followed for determining side distances. 



First, — Instrumentally ; by means of the well known 

 combination of graduated bars and arcs devised by Sir 

 John Macneil^ Avhich, when the sidelong inclination on 

 either side of any stake had been determined by a clinometer 

 or other instrument, admitted of being adjusted so as to 

 show by inspection, on a graduated bar, the required side 

 distance. Sir John Macneil's instrument is not however 

 applicable to those constantly recurring cases in which a 



