A472 ERRATA TO VOLS. XXI—XXX. 
XXVI.—P. 67, lines 4 and 5 from top, for ‘¢R : 24%::48i: 1H) read ‘3R* : 248: 
4Si: and dele the index 8 after (3R*+Z#).—P. 108, 1.7 from bottom, for ‘J. 
W. Bri,’ read ‘J. H. Bru L.’—P. 158, 1.1 sia top, for ‘95,’ read ‘96.’—P. 169, line 
12 and a ‘fom bottom, for ' v,’ Te ge! ‘V2—P. 170, 1.3 from a hea after ‘as much 
as,’ insert ‘one-fourth of.’—P. 236, 1. 17 Pia dips for ‘80,’ read ‘90.’—P. 1 
poe 1 bottom, ney are’ read ‘irised.’—P. 305, in the title of Hayes s article, dele 
331, 
int a. 1p 53 1. 19 from to op, after ‘ identical,’ lasert Sige foreign forms 
1. 10 from top, 44 'Srelanebian? insert ‘and perhaps Tertiary.’ 
XXVIL —P, 243, 1.1 from bottom, after ‘Delphi ner insert ‘ — _ Lingula 
shale, = gg of the Genesee Slate or Marcellus shale of New 
XXVIII.—P. 236, 1. . fr “rs top, for ‘lightly,’ read ‘aightly 5 aa’ ae other,’ in- 
sert ‘side is a. > 240, 1. 1 from top, after ‘ Actinocrinus,’ insert ‘ gran may pee IGirom 
‘ 2 fi read § 
one 
ottom, dele ‘ then. oe 357, 1. 10 from top, for ‘sand,’ read * mud.’—P. 403, (in some 
copies,) 1. 8 from bottom, for‘ ae read rope 
XXIX.—P. 272, 1.9 from Sh et ‘ HENTZ ‘Hermrz.’—P. 295, uk 2 from 
ee for ‘ Carten,’ read ‘ Gar on, "452, 3 iL cary acre ate p. 453, 1. 14 from 
, for ‘LEIBER,’ vier ‘ LIEBE her —P, 454, "1,18 from top, (in some pein: for 
AGURIN,’ read * DAGUIN. 
XXX.—P. 162, 1. ir from bottom, for ‘many,’ read ‘some.’—P. 167, 1, 23 from top, 
for ‘ best,’ read “test.’—P. 174, 1.18 ‘from top, for ‘ point,’ read ‘ part.’ 
1. 5 from bottom, after ‘the beak of the,’ insert ‘s pores "338, ’ 
