BAIKD &TATLOCK (LONDON) LTD. 



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



4539 



4541 



4549 



4550 



4539 Apparatus for determining the permeability of the wood vessels to air. See illustration. 



Fig. 63, page 177 



4540 Poroscope. Fig. 64, page 181 



4541 Apparatus for investigating the movement of gases in plants. Fig. 65, page 181 



4542 Apparatus for proving the negative pressure .of air in the vessels. Fig. 66, page 183 



4543 Apparatus for observing the phenomena of the absorption of water. Fig 72, page 194 . . 



4544 Apparatus for the experiments on root pressure. Fig. 73, page 198 



4545 Ditto. Fig. 74, page 198 



4546 Apparatus for the researches on root pressure. Fig. 75, page 198 

 4547 s Thermostat. Fig. 76, page 202 .. .. ' .'; 



4548 Apparatus for illustrating the processes leading to root pressure. Fig, 77, page 205 



4549 Apparatus for investigating the influence of pressure on the escape of water from plant 



structures. Fig. 78, page 207 



4550 Apparatus for transpiration experiments. Fig. 79, page 212 



030 

 1 6 

 046 

 026 

 030 

 030 

 056 

 040 

 1 17 

 050 



020 

 086 



CROSS STREET HATTOTST GARDEN, E- C 



830 



