132 
“Herr Geheimrath,” was for years Professor Strasburger’s 
“right hand” in his scientific work. Next November 15th oc- 
curs the 25th anniversary of Sieben’s service with the Botanical 
Garden and Botanical Institute of the University of Bonn; and 
on this occasion the present and former students at the Bonner 
Institute propose to present to him a cash gift, in token of their 
appreciation and friendship. Dr. Clemens Miiller, of the Botani- 
cal Institute of the University of Bonn, is in charge of the fund. 
The Garden has recently purchased from Dr. J. F. Brenkle, 
of Kulm, North Dakota, the nine fascicles issued so far of his 
Fungi Dakotensis, embracing 225 specimens of fungi. Most 
of these fungi cause disease in flowering plants, and the col- 
lection will make a valuable addition to our rapidly enlarging 
cryptogamic herbarium. 
