MISCELLANEOUS. 255 



iii five years it had increased to 169 pounds, and the earth 

 weighed two ounces only less than when the tree was 

 first planted. 



Who can popularly explain such phenomena as this ? 



It will be of little service your attempting to open 

 the eyes of those to whom you exhibit the wonderful 

 works of God as shown with a microscope, I must repeat, 

 unless your own eyes have been opened, and unless you 

 have grown in that inner knowledge which sees Him in 

 His works, and are neither afraid nor ashamed to confess 

 Him. before men. 



It has been well said that " a man may impart light 

 to others who does not himself see the light ; " but a 

 pupil will think little of his teacher, and find his own 

 growth little, if he hide the moral which the beautiful 

 parables of nature are intended to teach. "It is true 

 that a concave speculum, cut from a block of ice, con- 

 centrating the rays of the sun, will kindle touchwood or 

 explode gunpowder; a teacher may set others on fire 

 when his own heart is as cold as frost. It is true that he 

 may stand like a stiff and lifeless finger-post, pointing the 

 way on the road where he neither leads nor follows ; yet 

 it commonly happens that it is what comes from the heart 

 of the teacher that penetrates and affects the hearts of his 

 hearers. Like a ball red-hot from the cannon's mouth, 

 he must burn himself who would set others on fire." * 



In our examination of insects you will have observed 

 much of the wonders of transformed life, and gathered 

 some of the possibilities of the future as respects your- 

 self. In passing from the caterpillar to the chrysalis, 

 and from the chrysalis to the perfect insect, not only is 

 the external appearance altered, but the various organs of 

 support, motion, sensation, digestion, and reproduction are 

 * Dr. Guthrie. 



