ON SOME COLL AND TIREE PLANTS. 57 



The distribution of aquatic plants on our west coast is a subject 

 of much interest, and there is much to be done in this direction. 

 Few Batrachian Kanunculi appear to have been recorded from 

 between the Clyde and the vice-counties 103 and 110. Also with 

 some species of Potamogeton and with Cbaracese, the same blank 

 occurs, yet some of these plants most probably occur in inter- 

 mediate localities. Dragging apparatus does not take up much 

 room, and it is much to be wished that our lochs were explored as 

 occasion offers. As far as I have seen, small, easily-worked lochs 

 are as productive as large ones, and in the latter, one of the best 

 places is also the part most easily w^orked — that is, near the exit of 

 the loch and a short distance down the out^-oinsj stream. 



