322 Scientific Intelligence. 
to imply therein “that no one except Dr. Wichmann has ever 
studied microscopically the rocks of the Marquette district, and 
no one except myself advocated the secondary origin of the horn- 
= 
=] 
@® 
ct 
ey 
ta) 
9 
i 
io] 
n 
ot 
° 
S 
® 
n 
I do not understand, but in reply I have 1 ‘etry that the ae 
was ever intended to contain any such implications; nor ca 
be construed, so far as I can see, to contain the 
The writer of the note also says that I have advocated, without 
acknowledgment, his previously published views as to the “tra- 
chytic and rhyolitic nature of the Keweenaw felsites.” To this I 
bart to reply that I have never held the view which he attributes 
the Keweenaw 
certain extent in their general characters, these rocks cuiten a8 
to the — SS trachytes and rhyolites, but I have never 
held t any of these ancient rocks are lithologically 
he  ehinry rhyolites and — tes, a the 
D a second ort of the Director of the U. 
ae of Presq’ Isle I do not understand—as 
eu ahs we wc so far as I know, directly or indirectly referring = 
tot 
ne ° Finally, i in reply to the general summing charge of the writer 
of the note, Ihave merely to deny that I have ever published as 
original with myself any of his previously peroneal views. —_ s 
2. Gxonce 5 pe Phe Gren wes of the United States + being 2 e 
yynopsis of the Tribes and Genera, A Descrip 
ell as by predilection, Dr. Vasey is particularly intere : 
rami: ce ak studied them ele: ‘sssionaly availing 
; Bentham’s recent elab of the order in the 
lantaruam, eaggh ara now given, in English, a icon 
characters of the 1 ra_known to 
