204 



Chicago Microscopical Club was formed in connexion with the Chicago Academy 

 of Natural Sciences ;" but evidently taking the cue from another Society at home 

 (which is mentioned by name), it is thought necessary to make the infant Club 

 into a fashionable Society ; and accordingly ' ' a bill was immediately prepared 

 and sent to the State Legislature, and a law was passed, incorporating ' The 

 State Microscopical Society of Illinois.' " It is stated that the number of mem- 

 bers is 60, and on the occasion of the Soiree 50 microscopes were exhibited." 

 What effect the charter of incorporation may have in stimulating real work we 

 are not yet told, but doubtless we shall see the results in due time. 



Type Slides. 



We have recently been favoured by Mr- Curties with an examination of an- 

 other Type Slide sent over by M. MuUer, and containing 100 diatoms ; these 

 are arranged in straight lines, forming a square of such a size as to be easily in- 

 cluded in the field of a |-object glass, and the price is nearly one-third of that 

 noticed on a former occasion. 



