The Microscope. 57 



3d — To avoid mixing pollens : Have all the implements in 

 use clean to begin with ; work at but one kind of pollen at a 

 sitting ; have no draft of air across the table while at work ; 

 when through with the job on hand thoroughly wipe the uten- 

 sils, including the turn-table and work-table ; then wash the 

 hands and brush the clothes outside the room. 



4th — The teasers used in the staining process are readily 

 made of common sewing needles, large size, and set in the cork 

 of the vial so as to reach a half-inch, or more, into the fluid ; 

 the point should be broken off and then ground smooth so that 

 the fluid may be applied to the slide by a mere touch of the end 

 of the teaser. 



5th — Chisels for the use named, and far superior to any- 

 thing found in the market, any one can readily make for his 

 own use. For the narrow chisel set a crooked awl, large size 

 in a suitable handle; break off about one-half the length of the 

 curve aud grind the face of the chisel on the convex side with 

 the bevel on the other; cost one cent. For the wider chisel take 

 a piece of clock- spring four inches long and three eighths of an 

 inch wide ; straighten it nicely and set it in a handle, then grind 

 to chisel edge, and keep sharp. For this your jeweler will 

 probably charge nothing ; that is, for the piece of spring. 



6th — All utensils should be furnished with handles, made 

 of any handy light wood (the lighter the better) and so con- 

 structed that when laid down they will neither roll about nor 

 tip so as to allow the points to touch the table. 



7th — All that has been said above applies equally to the 

 mounting of smuts, save that these, being dark in color, do not 

 need to be stained, which is also true of many pollens. 



HOW TO MAKE WAX CELLS NEAT, PERMANENT AND 

 FREE FROM " SWEATING." 



BY REV. J. T. EROWNELIi, A. M., AUBURN, N. Y. 



Use the sheet wax, found at places where artists' materials 

 are kept for sale. Procure an assortment of the brightest 

 colors, including also a package of white. Take a sheet of each 

 and mark it off into % inch squares, using ruler and penknife 

 point. Break off a square of the white, lay it on the center of 



