404 REPORT— 18G9. 



partment of India, to whom it is proposed to entrust the superintendence ; but 

 it is believed that the entire series of experiments and investigations will not 

 exceed £5000. 



II. 



To His Grace The Duke of Argyll, X.T., Her Majesty's Secretary of 

 State for India. The Memorial of Thomas Hawksley, Civil Engineer, Vice- 

 President of the Institution of Civil Engineers ; Major- General Sir Andrew 

 Scott Waugh, Knight ; William J. Macquorn ^Eankine, Civil Engineer, Ee- 

 gius Professor of Civil Engineering and Mechanics in the University of Glas- 

 gow ; Pichard Boxall Grantham, Civil Engineer, Member of the Institution 

 of Civil Engineers ; and Thomas Login, Civil lilngineer. Member of the In- 

 stitution of Civil Engineers. 



Sheweth, — That your Memorialists respectfully solicit Your Grace's atten- 

 tion to a subject of great importance in the construction of artificial rivers for 

 irrigation and drainage. 



That at a Meeting of the British Association in August last at N^orwich, a 

 paper was read by Mr. Login, one of your Memorialists, on the abrading and 

 transporting power of water, in which he laid before the Association the 

 results of his experience in India regarding the power of flowing water for 

 holding solid matter in suspension. 



The subject was considered to be of so much practical importance, that 

 your Memorialists were appointed a Committee to report ujion it to the Me- 

 chanical Section of the British Association ; but they have found the present 

 state of scientific knowledge to be so vague and imperfect that it is in their 

 judgment necessary to obtain, in the first instance, a complete series of 

 experimental data. 



To institute experiments would, however, require some expenditure for 

 apparatus and attendance beyond the means of the Association. 



Moreover, since the results of the investigations Avould, in the oj^inion of 

 your Memoriahsts, be of great public utilitj', they venture, indcpcndentl)' of 

 the Association and solely in their individual capacities, to lay this matter 

 before Tour Grace in the hope that the Indian Department of Her Majesty's 

 Government will take the subject matter of this Memorial into their considera- 

 tion, and if deemed expedient dii'ect that the requisite investigation may be 

 undertaken at the public expense. 



(Signed) T. Hawklset, V.P.Inst.C.E. 



Andrew Scott Waugh, Major-Gen. R.E., F.E.S. 

 W. J. MAcairoEN Paneine, C.E., LL.D., F.R.S. 



PiCHAED B. GEAJfTHAM. 



T. Login. 



Interim Report by the Committee on Agricultural Machinery , consist- 

 ing of the Duke of Buccleuch, F.R.S. , The Rev. Patrick Bell, 

 Davii) Greig, J. Oldham, William Smith, C.E., Harold Lit- 

 tledale. The Earl of Caithness, F.R.S., Robert Neilson, Pro- 

 fessor Rankine, F.R.S., F. J. Bramwell, Rev. Professor Willis, 

 F.R.S., and Charles Manby, F.R.S.; P. Le Neve Foster and J. 

 P. Smith, Secretaries. 



This Committee have to report that several of its members have been 

 engaged in collecting and arranging the information necessary in order to 



