XXvl REPORT—1852. 
time if an expedition were sent out with this special and exclusive object ; 
and might, in that case, be so conducted as to lead with certainty to the 
result. 
«“ «The best mode of making observations would, probably, be found to be 
to place observing parties at certain distances along the coast, the intervals 
being various according to the nature of the phenomena; and to direct 
them to make simultaneous observations for a few daysyand then to proceed 
farther along the coast with the expedition; or the tides at any place might 
(on any day) be referred to the moon’s transit, and this would afford suffi- 
cient means of comparison with any neighbouring case, unless the phzno- 
mena were peculiar. In this way the progress of the tide-wave along the 
coasts of Africa and America would be determined; from what points it 
diverges, and towards what points it converges ; the latter points being, it is 
presumed, generally those of very high tides, such as occur on the east coast 
of Patagonia. With these observations, combined with others at oceanic 
islands, the general course of the tide elevation might be traced ; and if this 
were done for the Atlantic, it would be the first time that the course of the 
tide in such an ocean-space has been made known to us. 
“<Tt would also be desirable to observe at the same time the streams of 
flood and ebb. From such observations, combined with those of High and 
Low water, it has appeared in Captain Beechey’s recent researches, results 
may be deduced, giving a new and unexpected view of the tidal movements 
of the sea, and supplying knowledge useful for the practical purposes of 
navigation. 
“¢ As has been said, it is probable that an expedition devoted especially to 
such a purpose might attain the leading features of the required results in no 
long time; perhaps in a year or eighteen months. This must be on the sup- 
position that it did not attempt to follow the details of the tides out of the 
oceanic space into collections of islands like the West Indies, the details of 
which would employ a much longer time. 
‘«<« One ship, with several boats to set down and take up observing parties, 
would probably be the fittest scale of the expedition ; and standard points, 
where the observations should be longer continued, and to which the obser- 
vations at secondary points should be referred, would be established from 
place to place in the course of the operations.’ 
“III. It has been reported to the Council, by the officers of the Associa- 
tion, that from accidental circumstances, the three following recommenda- 
tions from the Committee of Section C, at Ipswich, had not reached the 
Committee of Recommendations in sufficient time to be included in their 
Report to the Committee :— 
“1. That a Committee be appointed to take into consideration and report 
upon the exact position, number and nature of the phosphatic beds of the 
Crag, and to connect this subject with that of mineral manures generally 
with reference to their scientific and economic value; and further to investi- 
gate the geological conditions under which the so-called ‘ Coprolites’ and 
other drifted Organic and Inorganic bodies occur in the Red Crag, and the 
probable sources from which these bodies have been respectively derived. 
The Committee to consist of Professor Henslow, Mr. Searles Wood and 
Mr. Long, with power to add to their number. 
“2. That Mr. Searles Wood be requested to prepare for the next meeting 
of the Association, a Report of the observed distribution of the specific forms 
of Vertebrata and Invertebrata in the supracretaceous deposits in the vicinity 
of Ipswich... 
