1046 



Cocks, 1853. Drummond, 1838. 



" The first step to he taken is " The first object to he attend- 



to examine each one separately, ed to in preserving marine plants 



and carefully remove every parti- is to have them washed perfectly 



67e of extraneous matter that may clean before spreading. There 



be attached. These foreign ho- should not be left upon them a 



dies^'' &c. — P. 17. particle of sand or other foreign 



hodijr 



" Notwithstanding the pains ice " Whatever pains we may have 



may have taken to clean our spe- taken to clean the recent speci- 



cimens beforehand, we shall often mens, we shall often find, when 



find, when they are fairly spread spreading them, that some foreign 



out, that there are still some mi- particles continue attached." 

 nute particles adhering to them." 

 —P. 17. 



" These are effectually removed " And for the removal of these 



with a pair of dissecting forceps, a pair of dissecting forceps, and 



which are, * * indeed, almost in- a camel's hair pencil of middle 



dispensahle in laying out marine size, will be found very conveni- 



Algse. They will, besides, be ent. These, indeed, are almost 



found most useful for various pur- indispensable, and will be found 



poses difficult to describe." — P. useful on more occasions than can 



17. here be specified." 



" Now, the quality of the paper " The next thing to be attended 



is a matter of considerable impor- to is the quality of the paper on 



tance, * * for it frequently hap- which the specimens are to be 



pens that a great error is co)n- spread; ax\(i here a great error is 



milted in this respect, not only generally committed, in using it 



by the novice, but also by the tJiin and inferior, by which, if the 



more experienced algologist, in specimen be worth preserving, it 



using paper of a tJcin and inferior has not proper justice done to it." 

 quality, which very much injures 

 the appearance of the specimen." 

 —P. 18. 



" There are some species in par- " Some species, too, contract so 



ticular, that contract so tnuch in much in drying, as to pucker the 



drying, as to pucker the edges of edges of the paper if it be not suf 



the paper if it is not suficiently ficently thick, * * * and this has 



thick, and these are then seen to a very unsightly appearance." 

 considerable disadvantage." — P. 

 18. 



