2/6 APPENDIX. 



proportion of salts, and among them are nitrates of lime, soda, and 

 magnesia. The gaseous contents were from two to three times as 

 great as in the river ; the difference being greatest in the quantity 

 of carbonic acid gas. 



I am indebted to Mr. "W. Chadwick for the following comparative 

 results on three cases in Wharfedale. The examination was con- 

 ducted by the late Mr. W. West, of Leeds. The results are stated 

 in grains per gallon. 



I. The river Wharfe, at Burnsall. 



II. Sand Beck which descends from the gritstone of Burnsall 

 Fell. 



III. Hebden Beck, taken near its junction with the Wharfe, on 

 a day when the washing of the Grassmgton lead-mines 

 ran into the beck nearer to its source. 



III. 

 3-3 

 1-5 

 1-7 

 2-0 

 3-5 



Total in the gallon 12-0 4-0 12-0 



Page 41. 



Eburacum. 



The dimensions assigned to the York Camp, page 75, appear by 

 the lately published Ordnance Map to be too large. By scaling from 

 that Map, the length from east to west is found to be about 1610 feet, 

 and from north to south about 1412 feet. The included area would 

 be about fifty-two acres and a quarter. 



Waste of the Coast. 



The waste of land on the coast of Holderness must, unfortunately, 

 be a subject of permanent interest to the residents. The following 

 documents will place in a clear h'ght the importance of this unresisted 

 encroachment of the sea : 



