QUERIES AND ANSWERS. 195 



brown, yellow and pied. That the yellow sorts were used for making 

 bread, but that the blue, brown, black and pied were used in brewing and 

 made a strong, dark-colored beer. 

 1043. Q. Will the flowers of tomato plants and potato plants mix ? Hybridiza- 

 A. Yes, they will pollenize in cases where the plants be grown under '**" ** * '® 

 glass and very practical eS'orts be made to effect cross-pollination, the potato, 

 tomato crossing with the potato and the potato with the tomato, but so 

 far nothing of any value has been obtained by such hybridization. The 

 living plants can also be grafted upon each other ; for instance, a potato 

 plant can be cut down to within an inch or two of the root and a tomato 

 stem grafted upon it, the above-ground plant being a tomato and produc- 

 ing fine fruit, and the below-ground plant being a potato, producing 

 potato tubers ; or to the contrary, a tomato plant can be cut down to 

 within an inch or two of the soil and a potato stem grafted upon it. Of 

 course the tomato root will not produce potatoes, but it will sustain the 

 potato top above ground which will produce potato flowers, seed bulbs 

 and sometimes abnormally developed small potatoes at the axles of the 

 stems. These experiments are only of value and interesting in a physio- 

 logical sense, nothing practical or of value can be expected from them. 



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