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An announcement (which read as follows) was recently issued by the 

 Bureau of Commercial Fisheries Biological Laboratory, Honolulu, concern- 

 ing an error in depths of reversal computed from the readings of unpro- 

 tected and protected reversing thermometers; 



..u « "Recently, it was discovered that the depths of reversal of 

 the Hansen bottles, as calculated at the Honolulu Biological Laboratory 

 from temperature differences of unprotected and protected reversing 

 thermometers are in error These depths, which are in excess of the 

 correct depth, may be reduced to the proper value by the use of a cor- 

 rection factor, as described below. 



... k 4 A V!Wv ra£ ; the data P roce88tn 8 ayatem in use at this laboratory 

 was being established, a table of the factor l/(Qx^ was prepared for * 

 use in computing the depths of reversal from the readings of unprotected 

 thermometers; Q represents the pressure-constant of an unprotected ther- 

 ?r^ er 'u an r Pm re P resert9 the «»ean density of the water column above 

 the depth of thermometer reversal, which was taken to be 1 9303 in all 

 wJI!* ^ ! rr ° r occurred tn the calculation such that, instead of 

 */lQxPm)> the table consisted of values of (1/Q)»p This error is 

 present in all of the depth data which have been published by this labo- 

 ratory under its previous name Pacific Oceanic Fishery Investigations 

 and under its present nam, iological Laboratory up to and 



including I960. Therefore king use of the data published by this 



iv n? ry „M r< 1%l -i ai1 ? ep ., th9 shouid be c ° rrec ted by dividi *g «ch 



oy <P m ) , which is equal to of all the published 



depths by 0.942 will give the h of elch obse^- 



Subsequent analyses hav 

 only in the data fi 

 Commercial Fi 



error 1 



