isyG.j 



MICROSCOPICAL JOURNAL. 



217 



labors: one which, because it embodies some scientific con- 

 ception, would attract the interest of learned minds; some- 

 thing- as distinct from the ordinary mechanical instru- 

 ment as is the scientific toy from ordinary toys. What 

 is or is not such an instrument, in cases arising- under the 

 statute, is to be determined as a question of fact, accord- 

 ing- to the nature of the thing itself, and not necessarily 

 according to the nature of the use for which it is primarily 

 desig-ned or in which it is principally employed. Ordinary 

 metal tubes, a wire mask covered with flannel, and glass 

 tubes for holding- wound catg-ut, imported for use in clinics 

 and training- schools the court does not consider attain to 

 the dignity of "scientific instruments." 



MICROSCOPICAL APPARATUS. 



A New Microscope.— The stand is made entirely of 

 brass, highly finished, with graduated-drawtube, nickel- 

 plated. The Base is solid brass (not filled), extra larg-e and 



heavy thus rendering- the instrument perfectly stable. 

 The Stag-e is also extra larg-e, 9.5 x 8.5 centimeters, of hard 

 rubber, firmly vulcanized and bolted to heavy brass stage- 



