Cir. 41 , Bureau of Plant Industry, U, S, Dept. of Agriculture. 



Plate I. 



Fig. 1.— Calabash Pipe Gourds. 



Tilt' gounl at ihe left lias tlie natural curve; tlie two at the ri^lit were artificially 



one-sixth natural size.) 



liapeJ. (About 



Fig. 2.— Young Pipe Gourd at the Stage to Begin the Shaping Process, Just 

 After the Flower Has Withered 



(,( iiif-tliini natural size.) 



