402 



REPORT 1869. 



EXAMINATION OF 



Interim Report of the Committee on the Laws of the Flow and Action 

 of Water containing Solid Matter in Suspension, consisting of T. 

 Hawksley, Professor Eankine, F.R.S., 11. B. Grantham^ Sir A. 

 S. Waugh, F.R.S., and T. Login. 



YotTB Committee considered, in the first place, -what experiments would 

 be necessary in order to furnish, the data required for the determination of 

 the laws of the flow and action of water containing solid matter in suspen- 

 sion, and what would be the probable cost of these experiments. Their 

 estimate of that cost was £5000, and they came to the conclusion that this 

 was beyond the means of the Association. They had no authority to apply 

 to the Government in the name of the British Association ; but in theii- 

 individual capacity they addressed a memorial to Her Majesty's Secretary 

 of State for India, representing the practical value of such experiments, and 

 especially their importance to the interests of India. That memorial was 

 accompanied by a general description of the experiments requii'ed, and an 

 estimate of their cost; and copies of aU these documents are appended 

 hereto. The Government, however, declined to accede to the application. 



Your Committee beg leave to represent that, if reappointed, and invested 

 with power to apply to the Government in the name of the British Asso- 

 ciation, their future application might meet with better success. 



Appendix. 



I. Flow of "Water with Solid Matter in Suspension. 



Sl-etcli of ])roposecl Course of Experiments. — 1. It is proposed to apply for 

 the temporary use of a piece of ground near London, and, if possible, in the 

 neighbourhood of the Kew Observatory. 



2. A canal to be constructed with a smooth bottom and sides of plate glass 

 about 500 feet long, 5 feet broad, and 3 feet deep, and capable of being 

 covered when required. 



3. At one end of the canal will be a reservoii' supplied with Avater by means 



