34 BACTERIA IN RELATION TO PLANT DISEASES. 
paper,* using a hot-water funnel. Later he followed Schutz’s method (’92, Bibliog., 
XVI), which is a very good one. ‘This consists in cutting the agar into small bits 
and first heating it very hot in a beaker or enameled-iron dish in a minimum quantity 
of water or beef-bouillon over a hot Bunsen flame with constant and rapid stirring and 
Fig. 32. 
*The folded filter papers are the most convenient (fig. 34). ‘These filter papers give the starch 
reaction (blue) with iodine, and reduce Fehling’s solution on being boiled in it, 
tFig. 32——Unnamed species of red sea-weeds(Gelidium) furnishing agar-agar. From a Japan- 
ese chart showing “The principal aquatic plants of Japan,” supposed to be an official publication. 
One-half natural size. Original in library of United States Fish Commission. 
