32 BRITISH SEA-WEEDS. 



I must not omit to refer to the paper to be used, first 

 to lay out and subsequently to mount a collection. The 

 best kind for the former purpose that I have seen is of 

 French manufacture, wove, very white, thick, and not 

 highly-sized. I obtained this in Jersey, but have not 

 always been able to meet with it even there. The most 

 suitable paper of English make is the very heaviest 

 printing demy that can be procured. Dr. Cocks, in his 

 ' Seaweed Collector's Guide,' states that a ream of the 

 ordinary size, \7\ by 11 inches when folded once, should 

 weigh about 34 pounds. He adds, " Having chosen a 

 paper of this kind, I would strongly recommend that no 

 other should be used." For mounting, cartridge-paper 

 is best, and the size and quality must depend on the 

 taste and the requirements of the collector. What is 

 called elephant size, cut in half for the covers for each 

 genus, and in quarters for the species, is a convenient 

 and handsome form. 



jNIy own practice is to have two complete sets of 

 papers, — one rough, with brown-paper genera, and whity- 

 brown or newspaper specific cases ; the other — my 

 collection proper — of cartridge-paper throughout. I 

 place all my specimens, in the first instance, in the 

 former, and thence at my leisure transfer to the latter 

 such as I may wish to keep permanently, leaving the 

 remainder in the rough cases as duplicates. 



I write the name and number of each genus, and of 

 all the species that it contains, whether I possess speci- 

 mens or not, outside the genera cases of both sets, so 

 that I am always able to keep my whole collection in 

 systematic order, and to refer readily to any part of it. 



I shall insert a numbered, systematic list of genera and 

 species at the end of this work, to aid those collectors 

 who may wish to adopt the same plan. 



