10 THE MICROSCOPE AND ITS LESSONS. 



has made of Himself one appealing to the senses, and 

 the other to the soul. 



It is about three thousand years since that hymn was 

 written, and what astonishing disclosures have been made 

 since then ! And it is not too much to say that, amongst 

 all the instruments which have led to greater revelation, 

 the telescope and the microscope are the chief ; for with 

 the one " a sun has been discovered in every system, and 

 with the other a world in every atom." 



These two magnificent keys have opened the doors to 

 new worlds have thus unveiled the secrets of the sky and 

 sea, the firmament above us and the earth around and 

 beneath us, as well as the mysteries of life within us; 

 and he who is the fortunate possessor of a really good 

 telescope and microscope, with the knowledge how, not 

 only to use, but to apply for the use of others what he 

 has had revealed to him, may surely claim to have " done 

 the state some service." 



He who wrote the poem already referred to has, in 

 another place, given us three thoughts enwrapped in one 

 expression. He first declares that " the works of the Lord 

 are great ; " then, secondly, that they are to be " sought 

 out ; " and, thirdly, by " those that have pleasure therein ; " 

 and the pleasure and profit the author of this little volume 

 has derived during thirty-five years' study have suggested 

 to him the duty and privilege of offering to others a sip 

 from the full cup which has been to him a sweet source of 

 joy that no man can meddle with, and a healthy stimu- 

 lant to true devotion. 



" The heavens declare the glory of God." A remark- 

 able assembly took place at Paris about four years ago, 

 when fifty-five delegates, representing fifteen different 

 nationalities, took part in the investigation of the star- 

 dust of heaven, with a combination of result that 



