■22 Mr. SrACKiiot^i!.'s.<Ji>fcrvat!Otis 



liquor. Dui iiig this immcTilon, with a camel's-hairbrulh, fuch an 

 varnillicrs make ufc of, wet thoroughly a (hect of blotting-paper : 

 ditplay your Ipeciuicn carefully on this paper, and prepare another 

 Ihcet in a fimiUir manner to lay over your plant. Then give a fmart 

 prelTure to your plant, cither with a botanical prefs, a napl<>in pref!^, 

 or weights of any kind applied to the fpecimen placed between 

 Imooth boards, or books, obferving to lay about half a quire of 

 paper below the fpecimen, and the fame quantity above, to take up 

 the moifture. After a day or two, according to the fucculency of 

 the plant, and when the aluminated paper appears perfectly dry, 

 your fpecimen may be removed into frellii paper, and kept carefully 

 under gentle prefTore, with the edges of the paper folded over each 

 other to prevent every pofTible admifTion of light and air, till its 

 removal into the herbarium. For thofe who wifh to affix their fpc- 

 cimens (and it is fcarceiy poffible to effe6l the prefervation of the de- 

 licate tints of the petals of many kinds without a flrong adhefion 

 to, and almoft incorporation with the- paper), the time abovemen- 

 tioned, that is, when the aluminated paper is thoroughly dry, is the 

 proper time for proceeding with the operation. Have ready a parte 

 made with flour and water, with alum mixed in it, fuch as up- 

 holfterers ufc, ftrong gum-water, or ifmglafs-glue: apply either of 

 thefe to the back of your fpecimen with a bruili ; then fix it care- 

 fully on flrong writing or drawing paper, by laying your paper 

 fmoothly on the fpecimen as it lies, preffing it gently with your 

 hands and a cloth, and then turning over both together. When 

 this is done, iron the plant with a box-heater in the manner recom- 

 mended by Major Velley in Dr. Withering's Arrangemer.t of Briti/I} 

 Plants, V, I. p. 34. if you have the conveniencies ; if not, apply an 

 immediate and fmart preflure, as before direiSled. 



It is taken for granted that thofe who wifh to profit by thefe 



inftruftions, 



