MICROSCOPY. 



"2.31 



of the slide and the person who mailed it, the damaged slide shall 

 be sent to the secretary who shall compensate the owner, to an 

 extent not exceeding one dollar for any one slide, out of any un- 

 appropriated funds belonging to the club. Cash on hand and in 



be considered subject to this claim. Differences of opinion in re- 

 gard to damages shall be referred to the President, whose decision 

 shall be final. 



12. At the same time with the box, and to the same address, 

 shall be invariably mailed a letter-package containing a list of 

 members of the section and of objects in the box, and blank 

 papers for memoranda, remarks, questions and answers, notices 

 of exchanges sought or offered, etc. ; also, at the proper times, 

 N oting lists for election of officers or the transaction of other busi- 

 ness. Everything contained in the letter-package shall be con- 

 sidered the property of the club, shall only be removed therefrom 

 by the secretary and shall be by him filed or published as may 



13. The letter-package and the box of slides should accompany 

 each other, and any member who does not receive either one within 

 three days after the receipt of the other, shall promptly notify the 



Notice shall always be sent by members to the secretary, one 

 week previously, if practicable, of any change of post-office ad- 

 dress, or of any absence from home which would cause more than 

 ten days' delay in the forwarding of any package directed to 



14. The secretary shall annually submit a detailed statement 

 of receipts and expenditures to the managers, who shall audit the 



A new Spring clamp for mounting objects. — Mr. Norman 

 N. Mason, of Providence, R. L, has contrived a clamp, or spring 

 clip, for holding the cover-glass in position, which is probably by 

 far the best yet made, both from the ease with which it can be 

 made and the facility with which it can be used. A thin plate 

 of sheet brass or German silver is cut to the shape of fig. 113, 

 and then bent into position as represented in side view by fig. 114. 

 The end of the glass slide is slipped under the spring tf, and rests 

 against the curve e. The point a, which may be protected with a 



