The Taconic. — Marcoti 
87 
deposits with the Champlain 
system of the typical area, and 
nothing left to speculation, ar- 
bitrary or hasty conclusions. 
The accompanying tabular 
view gives at a glance the 
classification and nomenclature 
of the Taconic system as it is 
viewed by its partisans and its 
adversaries. 
The errors of the adver- 
saries of the Taconic system 
have been all the time on the 
side of diminishing the age of 
the strata, making them always 
younger than they are. There 
is not a single example of their 
having tried to make a group 
too old, and never any one of 
them has said, "such division 
is of such an age or older ^'''' 
no, they say always, "such a 
division is of such an age or 
younger /'''' and in their desire 
to restore to youth the oldest 
American strata they have 
gone on so far as to make 
them get up half the ladder of 
the stratigraphical scale. The 
last memoir of Mr. Walcott is 
an effort in the same direction; 
and all his argumentation tends 
to prove that what he calls 
Nos. I, 2, 3, 4 and 6 are all 
younger than they really are; 
the only difference between 
him and his associates is that 
he accepts the stratigraphical 
position of his No. 5, arrived 
'? Cl ."^ &• Sa 1 
t»; 
Black slate. 
Taconic slate. 
Magnesian slat 
Stockbridge li 
stone and Sp 
limestone. 
Granular quar 
B 
U ^B ? 
6i 
re Ci, r» C Ss 
2= ft^ 
Hudson 
or a gro 
Utica sla 
Cbampla 
Silurian 
and Car 
united i 
amorph 
Riv. gi 
up ab 
in, U 
,Devo 
bonite 
n one 
os'du 
2." i^l'^ 
o_ c £,'' 
■ 2. " S h 
S 
•cup' 
ove. 
pper 
man 
rous 
met- 
lass. 
re a 
^ (i P C ?s 
2 
.^ C f 
1 ^ 
a 
i^^rS -■ 2 
re r=« Jt P re 
g| 1 
- p in 
►? 3' ' 
-Jj~ a -fi ir: 
so ' k.» 
3 '•' 00 
<^o ^ ' ^ 
t~l 01 
=?'•; ^ 
.►-' 
p cC" 3 
^ 
N m C 
re 
"<) £.(p 
"J 
re d, o- S3 
. 
trn 
Hudsoi 
Utica s 
Lower 
Calcif- 
ton. 
Later 
rian 
fc 
re 3 
&: • 
5 5" t-i 
05 "1 Opj 
-: P c n> ?• 
Si ^-- ' t 
^ *-i r r- TO 
^1 [^ 
:roup. 
in, or 
Tren- 
Silu- 
ger. 
re !^ cr" S 
• . • . . 
Cambrian. 
Mostly Hur 
slate. 
Hudson sla 
Lower Silu 
limestone. 
Cambrian. 
alcott. 
per part 
iddle Can 
and all i 
Ordovici 
is?2. S 
Iso 
,te. 
ria 
==! re • 
3 3 
f6 c .™ iy .'^ 
^QD 1 hC3 ^-^0 ^C '^ 
K^'-^l ~-3rePS=<Pre 
a>2^=^22S'-.S~'2 
re p ri ,-^ J,- ra re 2' p 
1= 
slates (i 
,1 fauna. 
Q slates ai 
bee— Supi 
vith coloi 
slates (i 
,1 fauna w 
burg and 
fi-prim'l 1 
US, or low 
Tac— Pr 
? § 

»3 
art) 
itad 
art) 
cole 
iute 
, col 
art 
fau 
— Pri- 
elHill 
ordial 
— Pri- 
)nies. 
Levis 
onies. 
of the 
na. 
