GENERAL REMARKS CONCLUSION. 91 



ginate the Cholera, Influenza, and other epidemic dis- 



I NOW take farewell of the " COURTEOUS READER," 

 who has indulgently accompanied me through this im- 

 perfect attempt to illustrate some of the important 

 subjects, involved in the microscopical investigation of 

 the Invisible World of Being. Amply will my labours 

 be rewarded, should they induce any of the young 

 and intelligent to enter upon a department of science 

 so replete with interest and instruction, and which is in 

 the highest degree calculated to exert the most bene- 

 ficial influence on the character, by leading the mind 

 from frivolous and unworthy pursuits, and exciting in 

 it those aspirations after truth and wisdom, which ele- 

 vate the soul above the petty passions and prejudices of 

 common life. "For who can contemplate the mar- 

 vellousness of GOD'S works, and not think his best and 



* For a full and able consideration of this most important and inter- 

 esting question, the reader is referred to " Medical Notes and Reflec- 

 tions," (by Henry Holland, M.D., &c.; London: 1839), chap, xxxiv, 

 " On the Hypothesis of Insect Life as a Cause of Disease." In the 

 opinions of this eminent medical philosopher on this subject I entirely 



