50 
y here be studied side by side, and their sage more 
c 
rangement has ene been crue Several vexing and per- 
plexing problems h ttwo years and many 
others are being cleared up. Dikereneesar are often discernible in the 
found to be alike. Then, ne the various stages of the plants 
can be compared, period for period, and great differences are 
found to exist in their develope which int ced could n 
be detected in dried herbari speci 
By consulting the map (Plate Ill, paler a ti aa location of 
the various Sie and their relationship to each other will 
be readily understoo 
The herbaceous grounds, the first plantation established and 
the one most fully developed, is situated in a glade at the south- 
ern side of the grounds just east of the Er tae ,a 
ridge separating it from that thoroughfare. This tract, eae 
ing about eight acres, is bounded on both sides by more or less 
rocky and shaded elevations and is longitudinally traversed by a 
brook, thus all conditions from a dry rocky soil to marsh and 
water are furnished, so that suitable conditions are afforded for 
the growth of a great variety of plants within a comparatively 
small area. One or more beds are allotted to each family and 
these are arranged in a free and artistic manner, formality being 
avoided and the natural beauties of the glade preserved. Each 
bed has a sign giving the common and botanical name of the 
family. The brook divides the tract into two unequal parts, - 
smaller one to the east being devoted to the ferns, and to 
endogens or piants with parallel-veined leaves, the former ieee 
in the extreme southern end ina rocky shaded place well adapted 
to their successful cultivation ; the endogens follow these to the 
quence terminates with the lilies and orchids at the northern end 
of the area. On the west side are grown the exogens, or plants 
