170 THE AMERICAN MONTHLY [May 



made in any branch of microscopical work, always receive 

 a courteous hearing- from the society, and frequently valu- 

 able assistance is afforded by hints from the ripe experi- 

 ences of the Fellows. The Journal, which is issued bi- 

 monthly to the members, contains, in addition to the trans- 

 actions, a summary of current researches in zoologfy, 

 botany and microscopy throug^hout the world, and is an in- 

 valuable record for workers. The extensive library and 

 instruments are always at the disposal of members, and 

 the rooms at 20, Hanover Square, are open daily. 



Representing-, as it does, microscopy in its scientific as- 

 pect only, the membership is necessarily limited, and the 

 very hig-h standing- of the society has rather tended todis- 

 courag-e workers from applying- for admission to its ranks, 

 but all really interested microscopists are entitled to claim 

 its advantag^es by becoming- Fellows. The "toy" micro- 

 scopist, who uses — or rather misuses — his instrument for 

 curiosity and amusement, is not elig-ible, but any person 

 who may be desirous of g-aining- a better understanding- 

 of the theory and methods of employment of the most fas- 

 cinating- instrument ever devised, or wishes to be au fait in 

 eurrent scientific microscopy, will have no difficulty in find- 

 ing- a Fellow who will nominate him. The secretaries of 

 the society are always g-lad to render assistance to such 

 persons. The society should have on its roll every earn- 

 est worker, and it is the duty of such to afford his best 

 support to the society, not alone for his individual benefit, 

 but for the g-ood of microscopy g-enerally and the vast in- 

 terests that are interwoven with it. 



NEW PUBLICATIONS. 



The Microscope. — Simon Henry Gage, This is the 

 Seventh Edition with the enlarg-ements and the matter re- 

 written reg-ardingf refraction, numerical aperture, filar mi- 

 crometers, imbedding- and section'^"'- by the paraffin 

 method. The title-pag-e is ch- ead ; "An Intro- 



duction to Microscopic y^ .^rt ana rlistolog-y." Ithaca, 

 New York, 1899. 



