228 TRANSACTIONS LIVERPOOL BIOLOGICAL SOCIETY. 



temperature of the water both to the south and to the 

 north. Then ag-aiu, the following dav we had water below 

 12° all the way iip the Sound of Jura, while at Oban, and 

 in the Sound of Lorn and Sound of Mull the temperatures 

 were mostly between 13° and 15°. Off the north-west 

 mainland to Cape Wrath the temperatures are between 

 12° and 13°, while further noith in the Orkneys, off Fair 

 Ishiud. and off Sumburgdi Head in Shetland. 14° and over 

 is reached. Higher temperatures, about 15°, were recorded 

 south of Skye around the Small Isles later in August, 

 and again in the Irish Sea when returning to the Isle of 

 Man. It is curious that the hig-hest temperature (16"1°) 

 recorded that day (August 23rd) in crossing from the 

 Noi-th of Ireland to Port Erin was found in mid-channel. 

 This observation was repeated to ensure that no mistake 

 had been made. 



The column g-ivino- the arannieter reading-s shows 

 that coni])ared with water at about ...26 in the Irish Sea 

 the North Channel has 26'5, while the neighbourhood of 

 Oban, the Lynn of Morven and the Sound of Mull show 

 lower readings of from 23 to 25. liound the outside of 

 Mull to Stalfa and lona the water is fairly constant at 

 from 26 to 26'4. In places round tlie Islands south of 

 Skye, and again in the Outer Hebrides round Barra, 27 is 

 reached. The water oft the north-west coast of Scotland 

 is mainly between 2() and 26\S ; while furtlier north in 

 tlu> Oikncys, off Fair Island, and in the Shetlamls 27 and 

 over is reached. Tlic highest reading is 27"() in liressay 

 Sound on Augfust 12th. Althouodi our readinfjs are, we 

 believe, comparable with one another for the purpose of 

 sucli coiit lasts as we have made above, we wish to state 

 that we are inclined to regtu-d them all as uniformly too 

 low, and requiring a correction applied (which we have not 

 yet determined) before they can be used for compansou 

 with other series of observations. 



