258 



The Scottish Naturalist. 



country. The Committee have drawn up a series of 

 questions which, they believe, practically cover the whole 

 field. The Secretary will send one or more copies of the 

 circular to those desirous of aiding in the work. 



10. Reporting on the Tertiary and Secondary Plants 



of the United Kingdom, and on the Higher 

 Eocene Beds of the Isle of Wight, (Sec, Mr. J. S. 

 Gardner). Fossiliferous beds of these periods are too rare 

 in Scotland to permit of our Societies giving much aid in 

 this enquiry. 



11. To consider the best methods for the registration 



of all Type Specimens of Fossils in the British 

 Isles, and to report on the same, (Sec, Mr. J. E. 

 Marr). 



Section D. 



1. Collecting Information as to the Disappearance of 



Native Plants from their Local Habitats, {Sec, 

 Prof. W. Hillhouse). It is unnecessary to add anything to 

 what has been already said in this Journal (pp. 233-39), 

 with regard to the Report of this Committee, and to the 

 expression of our hearty sympathy with the objects it is 

 designed to accomplish. 



2. To study the Invertebrate Fauna and Crypto- 



gamic Flora of the Fresh Waters of the British 

 Isles, {Sec, Prof. J. C. Ewart). The aim of this Com- 

 mittee is to make a systematic investigation of the rivers 

 and lakes of the whole country — an aim that will demand 

 the patient and assiduous labour of many workers, and 

 that peculiarly requires for its success the hearty co-opera- 

 tion of the Local Societies. In the pursuit of such investi- 

 gations the work should be systematic and thorough ; and 

 besides its more strictly biological side, it ought to include 

 the geological and physical features of the stream, pond, 

 or lake, and its temperatures at different depths and at 

 different seasons. The very interesting results of similar 

 investigations of the deep waters of the lakes of Sweden 

 and of Switzerland show how much remains to be accom- 

 plished in this line of work. 



