PLATE XXIII, 



Fig. 36. 



VERTICAL AXD HORIZONTAL SECTIONS OF ROBERT'S DIFFUSION 

 BATTERY.— i Stammer.) 

 el Root-cutter, b. Charging-cai with weighing attachment. e. Movable hopper, d. d 1 . d-, d 3 , ic 



Diffnsers. e. Reheat ma-reservoir. £ Connimnicatmg-tubes between diffusers. g. Discharge-tube. 

 k. Conducting-tube for displaced water or juice. 1. Safety-tube connecting with all the diffusers. and 

 serving to disconnect a defective one. t. u, v. x. y, z. Valves corresponding to the various tubes. 

 m. Tube joining valves with diffusers. r 1 and r 2 . &c. Conduits between reheaters and diffnsers. wand 

 u. Valves corresponding with same. r 3 . Conduit of juice to defecators, s. Manhole for exit of ex- 

 hausted slices. 



