TERATOLOGY OF THE BaNANA. 



227 



wire pot and the glass beaker. This difference was illustrated 

 by Livingston, in the second paper cited (p. 65), and the figure 

 has been re-published by Reed (p. 86). 



The experiments here reported seem to indicate that plants 

 may be expected to grow as vigorously and remain in as good 

 condition when watered by the porous clay cup as when supplied 

 with moisture in the usual way. A partial sealing of the pot 

 seems advantageous when the automatic watering device is used. 

 This method of self-irrigation may be used in experiments where 

 it is desirable to maintain the soil moisture approxi:r.ately uni- 

 form, and may also prove useful in measuring the water require- 

 ment and water loss of potted plants. It is also adapted to the 

 watering of plants grown for display and similar purposes, de- 

 creasing the amount of attention required by the method of 

 daily watering, and obviating the deleterious effects produced 

 upon the plant by the daily alternation of puddled and baked 

 soil. 



The Johns Hopkins University, 



May, 1910. 



TERATOLOGY OF THE BANANA. 

 By Frank J. Phillips. 

 A good example of teratology was recently found in a 

 twin banana fruit. The larger part of the twin measured seven 



Figure 4. 



inches in length while the smaller part was about two-thirds of 



