64 REGISTRY OF PERIODICAL PHENOMENA. 



3. Fructification. When the pericarp splits spontaneously in 

 dehiscent fruits, or the indehiscent fruit is fully ripe. 



4. Fall of leaf. When the leaves have nearly all fallen. 



The dates of these various periods should be inserted in their 

 appropriate columns. 



When the observations for the year are complete, they should 

 be returned to the Institution, with the locality and observer's 

 name inserted in the blank at the head of the sheet. 



