H. CROUCH ON MICROSCOPY IN THE UNITED STATES. 231 



happen to travel. To Dr. David Hunt and Professor Sharpless, of 

 Boston (President and one of the Vice-Presidents of the Boston 

 Microscopical Society) my warmest acknowledgments are due, and 

 should any microscopist desire to enjoy an especially good time, I 

 should strongly recommend him to spend his vacation, if possible, 

 in the United States. 



