IV. PREFACE. 



We must ask our readers to assist us by transmitting notes 

 of matters interesting to fellow microscopists as well as by 

 personal recommendation. On our own behalf, we undertake 

 that no trouble or expense shall be spared to render the 

 Journal of Microscopy worthy the assistance and support its 

 numerous friends so freely accord it, and to commend to our 

 readers our motto — 



"knowledge is not given to keep, but to impart." 



