502 Transactions. 
The temperature of the water in rock-pools between tides is appreciably 
raised on a sunny day, as the following figures show :— 
| 
| Temperature in 
{ 
Locality. a 
| Sea, | Rock-pool. 
Deg. С Deg. € 
f 16-5 | 185 
Lyttelton Harbour .. Se p ы! 9-5 | 10-5 
L 13-0 | 140 
Taylor’s Mistake (near high-tide mark) i 3 i à e 
TIDES. 
comes from the south, striking the south-west coast of the South Island 
about 12 o’clock at full and change of the moon. On the west coast it 
apparently meets a portion of the previous wave which has passed through 
Cook Strait from the east. Its course up the east coast, however, is more 
eventful. In two hours it has passed through Foveaux Strait from west 
to east, and after another hour is abreast of Taiaroa Head. Four hours 
Foveaux Strait, Cook Strait, and the east coast, its range is not great. 
Spring tides rise at Wellington 44 ft., at Napier 4ft., at Taiaroa ye 
61 
Highest spring tides sometimes follow the full moon and sometimes 
the new moon. Thus at Auckland, in 1914, from January to May 107 
moon was followed by good spring tides, but from August to December 
the highest tides followed the new moon. zu 
П. ECOLOGICAL RELATIONS. 
Lianr. = 
Quantity.—Certain facts in the distribution of plants and animals 11 
the intertidal belt may be attributed in part at least to the effect of light, 
though it is difficult to say whether in avoiding the sunny side of a roe 
