652 



SCIENCE 



[N. S. Vol. XXXI. No. 800 



3il£ 



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PJkAN OF GARDEN 



OP JOHNS HOPKINS UNIVERSITV AT HOMEWOOD 



A 



and, where this succession has been broken, 

 an index label has been used to show where 

 the next following numbers are to be 

 found. 



By means then of the continuous series 

 of numbers, one for each ultimate unit of 

 structure or relationship shown, it is be- 



lieved that confusion may be avoided and 

 the visitor be at liberty to note as much or 

 as little as he desires of the assembling of 

 these units into successively larger groups, 

 which are indicated in the guide, and by 

 group labels in the garden. 

 With such a definite series of structures 



