3082
THE NEW ZEALAND GAZETTE.
[No. 74

In cases of candidates failing to reach the required standard, they should be tested with at least eight sheets—viz., four to each eye—and the result noted on the Form Exn. 17b.

(7.) The Examiner must take care, by varying the test-sheets in form-vision, and by every other means, to guard against the possibility of any deception on the part of the candidates.

(8.) Every candidate who fails to pass the form-vision test is to be examined with the pellet-test as follows: The pellets should be placed on a white plate, and the first test-pellet (which is of the same colour as the first wool-test skein) should then be placed a little distance from the box on another white plate. The candidate should be required to pick out and lay by the side of the test-pellet all pellets of the same colour. The same should be done with the other test-pellets, and the examination should proceed in the same way as the wool test.

(9.) Should the candidate pass the pellet test, the Form Exn. 17b, properly filled up, together with the remarks of the Examiner, is to be forwarded to the Principal Examiner for his instructions as to whether the candidate is or is not to be regarded as having failed in form-vision.

(10.) Should, however, the candidate fail in the pellet test, thus indicating that the defective form-sense is due to disease, &c., it will not be necessary to submit the case to Wellington, but the Examiner should report the candidate as having failed in form-vision, and in forwarding the usual papers a description of the colours of the pellets incorrectly selected as matches in the respective tests, with any remarks, should be given on the Form Exn. 17c, in the space allotted for the incorrect wools.

(11.) The result of every test in form-vision is to be reported to the Marine Department, on the Form Exn. 2, and to the Principal Examiner of Masters and Mates on the Form Exn. 14, when the candidate is up for examination for a certificate; and to the Marine Department on the Form Exn. 2b when the candidate is up for examination in colours only.

All cases of failure to pass the test are also to be reported to the Principal Examiner of Masters and Mates on Form Exn. 17b.

2. COLOUR-VISION TEST.

(1.) The colour-vision of candidates is to be tested by means of Holmgren’s wools.

The wools are always to be kept in the tins provided for the purpose, except when in use at an examination, in order that they may not become faded or dirty. Each set contains about 135 skeins of wool.

(2.) Before the examination commences the skeins should be separated from one another, but each separate skein should be kept tied up as when first received.

The five test-skeins which must always be used at each examination, and in the order named, are labelled respectively I (light green), II (pink), III (red), IV (purple), and V (yellow).

Care must be taken that the labels do not get detached.

The colour-vision test should be held only by daylight. If a good natural light is not obtainable the test must be postponed. When the weather is dark or foggy, and a candidate cannot be examined in colours before his examination in navigation commences, he may be allowed to proceed with the examination in navigation, provided he is examined in colours on the first available opportunity.*

Full instructions as to the conduct of the examination will be found in this appendix.

• When the examination in navigation precedes the colour-tests the candidates should be informed that the examination in navigation will be cancelled if they should fail to pass the colour-tests.

(3.) The Examiner, as the examination proceeds, should carefully place on one side the skeins, the selection of which by the candidate seems to indicate a defect in colour-vision, taking care to discriminate between those selected as matching each of the five test-skeins.

The skeins, which have been correctly selected should be returned to the general heap on the completion of each of the five tests.

(4.) In every case in which the Examiner rejects a candidate, or is in doubt as to whether he should reject him or not, he is, when the examination is finished, to cut a small piece (say, an inch) off every one of the actual skeins incorrectly selected by the candidate, and to stitch the pieces cut off on to Form Exn. 17c, keeping the pieces cut off the skeins selected as matches to the first test-skein in one line, the pieces cut off the skeins selected as matches to the second test-skein in a second line, and the pieces cut off the skeins selected as matches to the third test-skein in a third line, and similarly for the fourth and fifth tests. The Form (Exn. 17c) with the pieces of wool attached to it is then to be forwarded to the Principal Examiner of Masters and Mates, with the Examiner’s report, on Form Exn. 17b.

The greatest care must be taken that the pieces forwarded are cut off the actual skeins selected by the candidate, in order that there may be a reliable record of the actual selections made by the candidate if any question should subsequently arise.

Pieces need not be cut off the test-skeins, but only off the skeins incorrectly selected by the candidate.

(5.) The Examiner should also note any incorrect skeins selected and withdrawn or seriously handled or compared with the test-skein by the candidate, and should when this occurs submit the case with similar portions of the incorrect skeins and his remarks on Form Exn. 17c, together with the Form Exn. 17b, to the Principal Examiner for his decision as to whether the candidate should be passed or failed.

(6.) In cases in which the candidate passes the test, pieces need not be cut off the skeins he has selected.

(7.) During the colour-vision test the Examiner should avoid naming the colours of any of the wools, and should explain to the candidate that he does not require them to be named to him.

In the test for colour-ignorance the candidate has to name three colours.

(8.) As soon as the skeins become discoloured, or unduly reduced in size (say, by one-third), owing to pieces having been cut off, application should be made to the Marine Department by the Examiner for a new set.

(9.) In the remarks which follow reference is made to different kinds of colour-blindness (red blindness and green blindness), but the Examiner is not required to form any conclusion as to the kind of colour-blindness from which the candidate suffers, and should not offer the candidate any opinion on this point.

All that is required is that the Examiner shall conduct the examination according to the rules laid down, the nature of the candidate’s colour-blindness being immaterial.

(10.) The result of every test should be reported to the Marine Department on the Form Exn. 2, and to the Principal Examiner of Masters and Mates on the Form Exn. 14, when the candidate is up for examination for a certificate of competency; and to the Marine Department on the Form Exn 2b when the candidate is up for examination in colours only.

All cases of failure should also be reported to the Principal Examiner of Masters and Mates on Form Exn. 17b, to which should be attached Form Exn. 17c, containing the pieces of the wools incorrectly selected by the candidate. (See par. 4.)

Method of Testing for Colour.

The method of testing consists in asking the candidate to select from variously coloured objects those which