VARIOUS PUBLICATIONS COMPLETED. 361 



the Cork meeting, which it will be impossible 

 for me to attend. ... I am infinitely grate- 

 ful to you and Lord Enniskillen for your will- 

 ingness to trust your Sheppy fishes to me ; I 

 shall thus be prepared in advance for a strict 

 determination of these fossils. Having them 

 for some time before my eyes, I shall be- 

 come familiar with all the details. When I 

 know them thoroughly, and have compared 

 them with the collections of skeletons in the 

 Museums of Paris, of Leyden, of Berlin, and 

 of Halle, I will then come to England to see 

 what there may be in other collections which 

 I cannot have at my disposal here. 



The winter of 1843, apart from his duties 

 as professor, was devoted to the completion of 

 the various zoological works on which he was 

 engaged, and to the revision of materials he 

 had brought back from the glacier. His hab- 

 its with reference to physical exercise were 

 very irregular. He passed at once from the 

 life of the mountaineer to that of the closet 

 student. After weeks spent on the snow and 

 ice of the glacier, constantly on foot and in 

 the open air, he would shut himself up for a 

 still longer time in his laboratory, motionless 

 for hours at his microscope by day, and writ- 



