THE HERBARIUM. 367 



power of waving to and fro in the waters, till they find a 

 suitable place for rest and growth. They are so light that 

 they may be raised into the atmosphere during the process 

 of evaporation, and driven about by the slightest breath 

 of wind. 



Directions for Collecting, Spreading out, Pre- 

 paring, and Preserving Sea-iveeds. 



Much of the pleasure and much of the benefit arising 

 from the study of Algology consists in the pursuit. It is 

 in so far like hunting and fishing ; there is all the excite- 

 ment of hope, and all the advantage of exercise; and there 

 is this in its favour, that, however great the success, there is 

 no life taken, no blood shed, and the subsequent enjoyment 

 is not limited to a short repast, but may be continued for 

 many years. 



Let the young Algologist provide a tin vasculum, or an 

 oil-skin bag, in which he may deposit his marine stores. 

 As some of the finer Algse soon fade in colour when exposed 

 to the air, it may be well to have a small wide-mouthed 

 fiask in which they may be carried home floating in sea- 



