366 Report of the Committee on Colour-Vision. 



dates come up together, they immediately communicate to the 

 other what has taken place. 



i4 The actual cases of Colour Blindness are very scarce, but it 

 is not at all an unfrequent occurrence to find men coming up, 

 more particularly from the rural districts, quite unable to name 

 the colours correctly, purely from want of education. These men 

 are always rejected. 



" Yours faithfully, 

 (Signed) " J. H. PARKER WILSON, F.R.C.S. 



" To the Superintendent L.C. & D.R." 



" The Cunard Steam- ship Company, Limited, 

 " Secretary's Office, 



" Liverpool, 



9th July, 1891. 



"Sir, — Referring to your letter of the 23rd ult., I beg to 

 annex particulars of the tests required to be passed by seamen 

 before they are admitted to the Cunard service. 



"I enclose also skeins of wool similar to those used on each 

 occasion. 



" The officers undergo a special examination for colour by the 

 Board of Trade in passing each grade. 



" The Cunard Company had the whole of their officers examined 

 some two or three years ago by a qualified medical man, which 

 examination is to be repeated this year, and every three years 

 in future. A special examination by a medical man is also to be 

 made in respect of each new officer entering the service, 



" As a representative of the Company, if he were to attend a 

 meeting of the Committee, could only repeat the particulars here 

 given, my Directors think that you will probably consider such 

 attendance unnecessary. 



"I am, Sir, 



" Your obedient Servant. 



A. W. MONHOUSE, 



" Secretary. 



" Captain W. de W. Abney, C.B., R.E., 

 " Science and Art Department, 



"South Kensington, London, S.W7' 



Colour Blindness. 

 Tests. 



First. — A lamp fitted with slides in which a, red, white, or 

 green glass can be placed. When the crew are about to sign 

 articles the lamp is lighted, and if a sailor unknown to the 

 officers wishes to ship, if his qualifications are satisfactory, he 

 is told to name the colour of the light as the different coloured 

 glasses are put in the slides and shown to him. 



Second. — Several skeins of coloured wool are placed on a table, 

 and if a stranger to the officers wishes to ship, he is told to pick 



