x BULLETIN OF THE GHEOLOGICAI SOCIETY OF AMERICA. 
CORRECTIONS AND INSERTIONS 
All contributors to volume 9 have been invited to send in corrections and inser- 
tions to be made in their compositions, and the volume has been scanned with 
some care by the Editor. The following are such corrections and insertions as are 
deemed worthy of attention: 
Page 195, line 5 from bottom; for “plate 15, page 183,” read figure 2, page 206 
“© 907, 
O43, 
«949, 
ab OR 
256, 
“969, 
«419, 
419, 
«490, 
“493, 
«495, 
ec 9 
ely 
ce IIL 
co 8 
oe 
ce 
ce 
(a3 (a3 ” 
; for ‘‘shores”’ read noses 
“; for “‘orthoclase-syenite-porphyries”’ read ortho- 
clase-porphyries 
. top; for *‘ Touseniis” read Tonseniis 
“; for ‘* Werd’”’ read Weed 
page heading; for syenite-porphery ” read syenite-porphyry 
line 38 from top; for ‘(Presented before the Society December 29, 1897) ” 
read (Accepted by the Publication Committee 
April 20, 1898). The correct statement is made 
on page 427 
; for “1482” read 1423 
bottom ; for ‘‘ 1481” read 1432 
top; for “Tialpam” read Tlalpam 
“* ; for “ Nebraska” read South Dakota 
bottom; *°1551’’ and the descriptive text should immedi- 
ately follow 1550 and thus the photographs 
donated will be credited to Whitman Cross, 
who presented them to the Society 
