374 Report of the Committee on Colour- Vision. 



salmon, &c. ; or to name card No. 7 as red, green, or 

 yellow ; or glass No. 2 as green, blue, or yellow ; or glass 

 No. 5 as red, pink, salmon, &c. ; or glass No. 7 as bright 

 red or bright green ; or the plain ground glass any colour, 

 the case should be reported for record. In short, if the 

 candidate's perception or impression of these tints does not 

 agree with the perception of the examiner, the case should 

 be reported on the Form Exn. 17b. 

 ' The only reasons for which a candidate is to be reported as 

 having failed are inability to distinguish red from green, 

 or either from black, by daylight ; and red from green, or 

 either from the ground glass, by artificial light. 

 " If a candidate fails in the colour test when the ground glass 

 is in the lanthorn (as it is always to be when the coloured 

 glasses are shown), he may also be tried over again with 

 the coloured glasses without the intervention of the 

 ground glass, and the result noted and recorded." 

 The regulations under which candidates are admitted for 

 examination are detailed in another circular (a slightly altered 

 revision of that previously in force) issued in January, 1886. It 

 runs as follows : — 



" Colour Tests. 



" The Board of Trade have made the following arrangements 

 for the examination of persons as to their ability to dis- 

 tinguish colours : — 



" 1. Examinations in colour are open to any person serving or 

 about to serve in the Mercantile Marine. 



" 2. Any person, including the holders of certificates of com- 

 petency, or persons about to apply for certificates of com- 

 petency, if desirous of being examined in colours only, must 

 make application to a Superintendent of a Mercantile 

 Marine Office on Form Exn. 2 a , and pay a fee of Is. 



"3. He must on the appointed day attend for examination at 

 the examiner's office ; and if he passes he will receive a 

 certificate to that effect. 



" 4. If he fails it will be open to him to be examined again in 

 colours as often as he pleases on payment of the fee of Is. 

 at each fresh attempt. 



" 5. The application of a candidate who is presenting himself for 

 examination for a master's or mate's certificate must be 

 made on Form Exn. 2. Such examination will commence 

 with the colour test ; and if the candidate does not at the 

 time of making application hold a certificate of competency 

 of any grade, and should fail to distinguish correctly any 

 one of the colours used in the test, he will not be allowed 

 to proceed with the examination in navigation and sea- 

 manship. 



