96 



THE GUIDE TO NATURE 



work originated by his father in cut- jcction lantern, or his even thinner 

 ting all kinds of wood with a special sections for study under the micro- 

 machine, in a manner similar to that cope. 1 he slices are so thin that even 

 of the biologist who in the laboratory the light of an ordinary lamp is strong 



RADIAL SECTIONS BY CUTTING LENGTHWISE. 



cuts thin secti n: of small things by 

 the aid of an instrument known as a 

 microtome. Mr. Hoi di's machine cuts 

 with reraa abi acctn acy. When 1 < 

 and; ii n men and women have 



acquired thi habit of wo id collecting 



enough to illuminate the tissues for 

 study by the compound microscope. 



d Nature. 

 Every year we are nearer to Nature. 

 This is an additional evidence, I think, 



SLANTING CUT SHOWING TANGENTIAL GRAIN. 



and wish to extend it they will find 

 that Mr. Hough will gladly aid them 

 with specimens of wood at a moderate 

 price. These he supplies in a series 

 of books, entitled "American Woods," 

 illustrated by these actual specimens 

 of woods, in the place of pictures, and 

 far more interesting. He also supplies 

 wooden cross section cards, very suit- 

 able for calling cards and especially 

 for wooden weddings. Of absorb- 

 ing interest are his thin transverse 

 sections of woods mounted in lantern 

 slides for showing characteristic struc- 

 tures on the screen by the aid of a pro- 



of that highest discovery which the 

 race has made — the immanence of God. 

 For, were Nature only material, the 

 human spirit would tend to outgrow it, 

 and possibly to recoil from it. 1 mean, 

 if there were any sharp line of opposi- 

 tion between matter and spirit. But, 

 Oh, what arms encircle us; what 

 throbs and pulsings in tree and river, 

 in gravitation and atomic affinities and 

 repulsions, blend with the beatings of 

 our hearts and make us one organism 

 with all that appears ; one life with 

 Him Who is the Life of all. — Elizabeth 

 Whitney Brown. 



