238 WR. Harrison's botanical press, 



placed over the holes in the bottom of the carriage, in which* 

 as well as all the canvas-boxes, muft be put an inch in depth 

 of the fineft fand, wafhed and fifted ; river fand is moft 

 eligible, as being lead angular; which fand muft be made 

 level on the top by drawing over it a rule that reaches one 

 inch into each box : thefe boxes are placed one within another, 

 and each by containing an inch depth of fand, raifes the in- 

 cumbent frame one inch, fo that when they are thiis charged 

 and placed one upon another, the whole makes a truncated 

 pyramid of IS inches in height, and weighing about I cwt. 

 The uppermoft box may be filled with fand, or, if more 

 weight be neceflary, with fliot. To this box I have added 

 (what is by no means elfential) a cap, confi fling of the fides 

 of three boxes fixed one within another, each projecting one 

 inch above its inferior, for the fake of uniformity ; the top is 

 covered by a thin board : when this cap is placed upon the 

 uppermofl box, the whole has not an inelegant appearance. 

 Reference to the Lefl the defcription ftiould not be fufficiently clear, I have 

 cugraving. fkelched the following figure, reprefenting a perpendicular 

 fedion of the prefs viewed on one fide of it. Plate XV. 



fig. 1 . reprefents a perpendicular fection of the prefs made 

 lengthwife. 



a. The end of the bottomefl box or carriage. 



b. Its bottom part perforated with holes. 



c. The end of the firft box with a canvas bottom, 



d. The canvas bottom. 



€. The fand which but half fills the box. 



/. The 17th or uppermofl box, with a perforated wooden 

 tottom. 



g g g. Reprefent the end of the cap formed of the frames 

 of three boxes, in the empty fpace of which may be placed 

 the botanift's pocket box. 



fit;. 2. reprefents the rule wherewith the fand is made level 

 in the boxes; it is 18 inches long. 



h, A notch one inch deep. 



2. The edge made thin. 



k\ A notch an inch long. 



Fiq. 3. reprefents the end of a canvas box. 



//. The two notches to place the fingers in when the box 



is to be lifted. 



The 



