DIRECTIONS FOR COLLECTING, ETC. 337 



every day, and then replaced;* at the same time 

 those specimens that are sufficiently dried may be 

 taken away. Nothing now remains but to write on 

 each their name, date, and locality. You can either 

 gum the specimens in a scrap book, or fix them in, 

 as drawings are often fastened, by making four slits 

 in the page and inserting each corner. This is by 

 far the best plan to adopt in a scientifically arranged 

 collection, as it admits of their removal without in- 

 jury to the page, at any future period, should it be 

 required either to insert better specimens or inter- 

 mediate species. Some of the larger algae when 

 dry will not adhere to paper, and consequently 

 require gumming. The following wash, to be applied 

 to them when perfectly dry, has been communicated 

 to me by a botanical friend. "After well cleaning 

 and pressing, brush the coarser kinds of algae over 

 with oil of turpentine, in which two or three lumps 



* An expeditious mode of drying sea-weeds is by means of 

 a heavy, heated flat-iron, pressed over the folds of blotting- 

 paper which rapidly dries away the moisture and, if carefully 

 managed, is said to impair the hue of the specimen but 

 little. 



