40 Transactions. 
- EARTHQUAKE, Monpay, 17TH AvuGUST. 
Hour. Latitude, Longitude, Distance Westin, 
a.m. South. East. from Napier. from Ut. 
Napier... -.. Oh. 55m. 89-29 176: 55 — — 
Waipukurau .. 9h. 55m. — — —. — 
Castle Point .. 9h.56m.  40?54' 176?13' 106 miles 37 miles. 
Greytown ... .. 9h. 55m. — — — — 
Featherston .. 9h. 55m. — — — — 
Wellington .. 9h. 56m. 41°17’ 174° 49' 169 miles 111 miles. 
9h. 55m. 
White’s Bay Ma j and | — — — — 
' (9h. 563m 
Blenheim ... .. Oh. 55m. — — — — 
Nelson  ... .. 9h.57m.  41?15' 173? 17' 229 miles 195 miles. 
Kaiapoi  ... .. Oh. 57m. — — — — 
Christchurch .. 9h.57m. 48°32’ 172° 38) 367 miles 225 miles. 
Lyttelton ... 4. 9h. 57m. — — — — 
Hokitika ... .. 9h. 58m.- 42°41' 170° 59’ 402 miles 315 miles. 
This shock was also preceded and followed by minor shocks felt in 
Wellington at the times shown in the following table :— 
Friday, August 14th, at 10.45 a.m. 
25 25 »» at 3. 10 P. m. 
Saturday ,, 15th, at 3.0 a.m., tidal disturbance. 
Sunday » 16th, at 3.15 am. 
Monday » 17th, at 9.56 a.m. great shock. 
Tuesday „ 18th, at daylight. 
Wednesday , 19th, at daylight. 
Telegraph station-masters reported the shock as from the south, but for 
mechanical reasons we may conclude that their sensation would suggest the 
opposite of the true direction. 
The periodical character of these shocks was at once evident, and they 
appear to be in some degree dependent on the period of maximum and mini- 
mum pressure, as indicated by the hourly fluctuations of the barometer. 
In conclusion, I may add that I have attempted to state facts in a col- 
lected form, deferring any fuller discussion of the matter until further 
details are obtained from Auckland and other places, where, no doubt, the 
tidal disturbances have been observed. 
Second Communication on the recent Earthquakes and Wave Phenomena. 
[Read 1st September, 1868.] 
We have now evidence, in addition to that which I formerly collected, 
that the first wave reached from the Chatham Islands to New Zealand in 
about an hour and a half, and that it passed on to the coast of Australia, 
