Report of the Committee on Colour-Vision. 375 



" 6. The fee he has paid for examination for a certificate of 

 competency will include the fee for the colour test, and, 

 with the exception of Is., will in such event be returned 

 to him. 



i4 7. A candidate for examination for a certificate of competency 

 who at the time of making- application does not possess a 

 certificate, and who fails to pass the colour test, may not 

 be re-examined until after the lapse of three months from 

 the date of his first failure. If he fails a second time he 

 will be allowed a third trial at the expiration of another 

 three months from the date of his second failure. A fresh 

 fee must be paid at each succeeding" examination. 



* ; 8. It is therefore obviously to the advantage of candidates 

 for certificates of competency to apply in the first instance 

 to be examined in colours only on Form 2 a . 

 9. A candidate who holds a certificate of competency, and 

 who on presenting himself for examination for a certificate 

 of a higher grade is unable to pass the colour test, will 

 notwithstanding be permitted to proceed with the examina- 

 tion in navigation and seamanship for the certificate of the 

 higher grade. 



" 10- Should he pass this examination, the following statement 

 will be written on the face of the higher certificate which 

 may be granted to him, viz. : ' This officer has failed to 

 pass the examination in colours.' 



"11. Should he fail to pass the examination in navigation and 

 seamanship, a like statement, relating' to his being colour- 

 blind, will be made on his inferior certificate before it is 

 returned to him. 



** 12. Holders of certificates which bear the statement of their 

 having failed to pass in colours, and who may desire to 

 have the statement removed from their certificates, must 

 obtain the special permission of the Board of Trade." 



Appendix III. 



Holmgren's Method of Testing for Colour. 



The method of testing consists in asking the candidate to 

 select from variously coloured objects those which appear of the 

 same colour as one which the examiner selects. The most suit- 

 able objects and at the same time the most readily obtainable 

 are skeins of wool, which can be procured of almost every 

 desired hue and tone. Another advantage of skeins of wool, 

 besides portability, is that, owing to their want of gloss, they 

 appear of approximately the same tone from whichever side they 

 are viewed. The colours of* the skeins to be selected include reds, 

 oranges, yellows, yellowish-greeLS, pure greens, blue-greens, 



VOL. LI. 2 c 



