BAIR.D &TATLOCK (LOTOON) LTD. 



Apparatus as described in Detmer Moore's " Practical Plant Physiology." 



Flii 



4575 4581 4582 



4575 s Arc Indicator. Fig. 123, page 377 .. .. .. .. 1 10 



4576 T Auxanometer. Fig. 124, page 378 . . . . . . . . . . . . 16 



4577 s Horizontal Measuring Microscope. (See Cathe tome ters.) Fig. 125, page 380 .. 5 10 



4578 Glass Cylinder. Fig. 126, page 383 . . . . . . . . . . ..04 



4579 Apparatus to investigate growth of roots. Fig. 128, page 387 . . . . . . 02 



4580 Apparatus to prove that roots are unable to grow in the absence of free oxygen. Fig. 



131, page 395 3 



4581 Apparatus to demonstrate geotropic root curvatures. Fig. 140, page 437 . . . . 07 



4582 Zinc Case with glass walls to observe the root development. Fig. 141, page 438 .. 10 





 

 





 



6 



6 

 6 



4583 



4583 T Clinostat, large pattern, with fan regulator, with solid clockwork movement allowing 

 of one revolution in either 4 to 25 minutes or 36 to 140 seconds. The clinostat can be 

 used in either a horizontal or vertical position . . . . . . . . . . 17 17 



,CHEMICAL AND SCIENTIFIC APPARATUS AND PURE CHEMICALS. 



833 



