COLLECTION OF SEA-WEED. 59 



but pressed at all,but laid out to dry, and when perfectly 

 so, then moisten the under side of the paper, and give a 

 gentle pressure only. 



Others will not adhere to paper, and therefore, when 

 dry, brush them over with a little isinglass dissolved in 

 gin (laid on warm), and they will then be fixed closely to 

 the card-board or paper. 



Another preparation is: One ounce oil of turpentine, 

 in which some gum mastic the size of a nutmeg has been 

 dissolved. This gives a gloss to the specimen, and helps 

 to preserve the color. 



You must change the blotting-paper and muslin at 

 least twice during the process of drying larger sea- 

 weeds; the smaller ones will be ready in a couple of days 

 for the album, on the second day giving heavy pressure 

 by stones and weights besides the strap." 



