178 BOTANICAL GAZETTE. [ July, 
spores out of the sporangia; (2) to furnish sails for catching 
the wind by which the spores are distributed. 
Ann Arbor, Mich. 
ig. 2. Sporangium of E. arvense after dehiscence, 30. 
Fig 3. Dia Sd of a sporangium of E.arvense, x 30. The unbroken 
resent one border of the gape into the ruptured sporangium. ; 
i rtion of the wall of E. arvense, to show cells in the region 
: : it 
wall; ¢, section of the dorsal wall of the sporangium. Below the cavity 
vf the sporangium is a portion of the peltate scale 
: ‘ id wa! 
Ig.6, ‘l'ransverse section of a sporangium of E. arvense, midway 
Fig. 8. Same with elaters outstretched, < 350. 
Fig. 9. One of the elaters of the same, showing triangular membrane 
at the place of attachment, 350. : { cellu- 
a ig. 3 sei of an elater of the same, showing separation 0 
‘se Irom the inner layer 5 : F 
ig. 11. epahiat os of an elater of E. arvense, showing a split yi 
tween the laminze, \< 700, 
Fig. 12. Cross-section of an elater of the same, < 700. 
s « , L 
Personal reminiscences of Dr. Asa Gray.’ ; 
Co Ve RIBRY. 
Th 
ertheless be remembered 
essentially a self-made man, and rose to préeminence throug? 
wn good qualities of heart and head, coupled eae 
thusiasm and Perseverance. There was nothing stilte 
Wash- 
'Remarks made at the Gray ial f 
ington, April 5, 1888, 
meeting, held by the Biological Society 0 
