52 



METHODS OF STl'DY. 



bristol board. Each slide should have a corresponding card and 

 on it the following data should be given: 

 1. Number of preparation. 



Name of object, from what taken, and locality. 



Name of preparer and date of mounting. 



Object of preparation. 



Method of mounting, stain, mounting medium, etc. 



Reference to figures, books, and papers. 



Remarks. 



2. 

 3. 

 4. 

 5. 

 6. 

 7. 



Sample Card. 



No. 1. 



TRANSECTION OF LEAF. 



Oct. 29, '93. J. Smith, Preparer. 



From Begonia Sanguinea. Green house plant. 



Shows general structure of leaf, stomates, guard cells, 

 etc. 



Hardened with alcohol, infiltrated with collodion, 

 stained with haematoxylin, and mounted in bal- 

 sam. 



Strasburger's Pract. Bot. p. 162. 



This section is quite thin and should be studied with 

 the high power, etc. 



The cards should be arranged alphabetically according to sub- 

 ject and can be kept on edge in a box of convenient size, with the 

 topics separated by tin or card board on which the letters of the 

 alphabet are pasted. This arrangement places at hand for instant 

 reference the whole collection of slides, and enables one to easily 

 find any particular section, while it furnishes a record of valuable 

 data with each preparation. 



When any slide is permanently removed or destroyed, the card 

 can be taken from its place and the set suffers no injury. 



