ON TIDAL OBSERVATIONS. 129 



that in tetanus this is tlie direction in which to move, and practice has shown 

 that whenever recovery does take place from tetanus, it has been in rare cases 

 where time has been gained, in cases, that is to say, where the sufferer has 

 lived through the acute stage of the terrible ordeal to which he has been 

 subjected. 



As regards the mode of administration of tlie nitrite. It may be given by 

 direct inhalation ; it may be given by inhalation in combination with chloro- 

 form and ether ; or it may be given by the mouth as an alcoholic tincture in 

 doses of three, five, or ten minims, or even in larger doses, according to the 

 effects produced. It would of course be the safest jilan to iise it in small 

 doses at first, and to keep up the effect by frequent and cautious repetition. 



In the course of prej)aring this lleport, many new lines of inquiry have 

 suggested themselves, and many temptations to leave the immediate subject 

 and to explore new paths and promising fields of discovery have been offered. 

 The examination of the whole of the amyl series of bodies in a physiological 

 point of view is particularly important. In this series there is probably to 

 be found another and safer anaesthetic than chloroform : in the same series 

 we may hope to find bodies analogous in their action to quinine ; and other 

 bodies more potent in suspending animation than the one to which I have 

 invited attention to-day. But I had one object before me, and that itself has 

 demanded undivided work. Should the labours thus far carried out be con- 

 sidered by this learned body of sufficient importance to call for further and 

 more extended research, I need only add that I shall feel myself the debtor 

 of the Section in being again its servant. 



Report on Tidal Observations made on the Humber and Rivers Trent 

 and Ouse, 1864. By a Committee, consisting of James Oldham^ 

 C.E.; J. F. Bateman, C.E., F.R.S.; John Scott Russell, C.E,, 

 r.R.S. ; and Thomas Thompson. 



Tour Committee for the above purpose, after reporting a series of tidal obser- 

 vatioris made at Hull, ISTew Holland, and Goole, at the Meeting of the British 

 Association at Cambridge in 1862, were reappointed for more extended ob- 

 servations, to be reported upon at Newcastle last year, but, owing to circum- 

 stances over which we had no control, we were unable then to comply with 

 the resolution of the Association ; but as the question of the tides of the 

 Humber and some of its tributaries was considered of importance in a scien- 

 tific point of view, the request was again repeated, and we your Committee 

 reappointed, with a grant of .£50 at their disposal for the expenses attending 

 our observations. 



Your Committee have now therefore to report to the Association that they 

 have obtained tidal observations at HuE, at Gainsborough on the Trent, and 

 at Goole and N"aburn Lock on the Yorkshire Ouse. Those at Hull were 

 obtained by your Committee from the Dock Company's gaiigc at that place ; 

 those at Goole from that of the Aire and Calder Navigation Company ; for 

 those at Naburn Lock permission was kindly given to your Committee by the 

 Commissioners of the Eiver Ouse Navigation to use their tide-gauge ; those 

 at Gainsborough were made at a point on the town side of the river about 

 300 yards below the bridge, from a gauge which we procured and erected. 

 The observations at each station were made at intervals of 15 minutes, and 

 extended over fifty-four tides, commencing at 12 o'clock at noon on the 9th of 



1864. 



