LIST OF ILLUSTRATIONS. 



1'A(;k. 



Some Inexpensive Appiiratus fphite) i 



l>iiusch cS: Lonib Biological Microscope (plate) 25 



Condenser Mounting (plate) 25 



Sugar Pine (plate) 49 



Red Cypress (plate) 49 



Yellow Pine (figure) 49 



Red Fir (figure) 50 



Redwood (figure) 51 



White Pine (figure) 52 



Georgia Pine (figure) 53 



Poison Oak (figure) 54 



Black Walnut (figure) 55 



Reichert's Hiemonieter (plate) 73 



Griffith's Slide Pocket Book (figure) 96 



Cotton Fibres (plate) 97 



Okra (figure) 99 



Allen's Long Staple (figure) 99 



Ellsworth (figure) 100 



Brandon (figure) . 100 



Sea Island, No. i (figure) loi 



Sea Island, No. 2 (figure) loi 



Bausch & Lomb's Microtome (plate) 121 



Griffith Club Microscope (plate) 121 



Desmids of North Wales (plate) 145 



Griffith Club Microscope, with Case (plate) 221 



Handy Photo-Micrographic Camera (plate) 245 



