DENSITY AND TEMPERATURE COASTAL WATERS 137 



SESSIONAL PAPER No. 38a 



Appendix A. 



Readings of Density and Temperahire of the Sea-water, and Maxintum and 

 Minimum Air Temperatures at the Biological Station, Departure Bay, May to 

 September, 1911^. 



The sea-water temperatures have been corrected by calibrating the instrument 

 of measurement against standard thermometer (standardized at Kew) ; the den- 

 sities were measured by a hydrometer subsequently standardized by calibration in 

 sodium chloride solutions, whose densities were determined with a pyknometer. All 

 the densities have been corrected to 15° C. (and comparison with water at 16° C.)- 

 The air temperatures have not been corrected. They were taken by instruments 

 supplied by the Meteorological Office. The results are shown as curves in fig. 1. 

 The water temperatures do not show maximal and minimal readings, so that the 

 comparison with the air readings is not absolute. Initially the water measurements 

 were carried out at times approximating to high and low water as soon as it became 

 evident that tides did not produce an effect, this was discontinued and the readings 

 were made between 8 and 9 a.m. The times given do not of course refer to the air 

 temperatures. 



Date. 



1914 



May 12 

 13. 

 20. 



June 1 . 



5. 

 6. 



7. 



8! 



9. 

 10. 

 11. 

 12. 

 13. 

 14. 

 15. 



16'. 

 17. 



18. 



19! 



19. 



20. 



21. 



22. 



22 



23. 



24. 



Time. 



8 p. m. 



2 „ 



4 .. 

 10 a. m. 



.5 p. m . 

 12 m. 



5 p. m. 



2 M 



7 - 



3 „ 



9 ■> 



m. 

 m. 



2 



11a. 

 6p, 



7 .- 

 12 m. 



1 p. m 



1 t. 



2 „ 



8 a, 

 9 



11 

 7 

 1 

 2 

 9 

 4 



m. 



p. m. 



a. m. 



p. m. 



9 a.m. 



6 p.m. 

 10 a.m. 

 10 „ 



9 .> 



7 p.m. 

 12 m. 

 12 m. 



Water. 



Density. 



1-0185 



0219 

 0210 

 0216 

 0178 

 0178 

 0176 

 0178 



0186 

 0184 

 0190 



621!' 



0203 



0201 



0201 



0210 



0209 



0210 



0163 



OI6O 



0199 



0169 



0168 



0162 



0168 



0182 



0168 



0177 



0178 



0182 



018') 



0207 



0210 



0206 



0199 



Air Temperature. 



Maximum. 



73-2 

 667 

 841 

 80-2 



60-4 

 61 

 690 

 750 

 760 

 70-0 

 80-2 

 85-2 



76-3 



75-2 

 72-2 



69-2 



640 

 590 

 63-3 



68-8 

 590 



Minimum. 



45-2 

 530 

 460 

 55-3 



480 

 49 

 44 

 460 

 490 

 540 

 47-8 

 54-7 



54 3 

 510 

 54-6 



506 



46 3 

 45-7 

 25-2 



43 5 



48-8 



Remarks. 



High water. 

 Low water. 

 High water. 



It 

 Low water. 

 High water. 

 Low water. 

 High water. 

 Low water. 

 High water. 

 Low water. 



Low water. 

 High water. 



High water. 



Low water. 



Low water. 

 High water. 

 Low water. 

 High water. 



Low water. 

 High water. 



