i8 



NEW YORK STATE MUSEUM 



77 hypotype Hall & Clarke. New York state museum 



memoir 2. 1898. pi. 1, fig. 3. 



Utica slate Holland Patent N. Y. 



W. P. Rust purchase 



7 8 22A0 hypotype Hall & Clarke. New York state museum 



memoir 2. 1898. pi. 1, fig. 4. 



Utica slate Holland Patent N. Y. 



W. P. Rust purchase 



79 --5-- hypotype Hall & Clarke. New York state museum 



memoir 2. 1898. pi. 1, fig. 5. 



Utica slate Holland Patent N. Y. 



W. P. Rust purchase 



80 £^t£ hypotype Hall & Clarke. New York state museum 



memoir 2. 1898. pi. 1, fig. 6. 



Utica slate Holland Patent N. Y. 



W. P. Rust purchase 



,81 hypotype Hall & Clarke. New York state museum 



memoir 2. 1898. pi. 1, fig. 7. 



Utica slate Holland Patent N. Y. 



C. Haskell purchase 



82 hypotype Hall & Clarke. New York state museum 



memoir 2. 1898. pi. 1, fig. 8. 



Utica slate Holland Patent N. Y. 



C. Haskell purchase 



83 d A - hypotype Hall & Clarke. New York state museum 



memoir 2. 1898. pi. 1, fig. 9. 



Utica slate Holland Patent N. Y. 



W. P. Rust purchase 



84 a f$£ hypotype Hall & Clarke. New York state museum 



memoir 2. 1898. pi. 1, fig. 10, n. 



Utica slate Holland Patent N. Y. 



W. P. Rust purchase 



85 -fx~ hypotype Hall & Clarke. New York state museum 



memoir 2. 1898. pi. 1, fig. 12. 



Utica slate Holland Patent N. Y. 



\V. P. Rust purchase 



86 &f|_a hypotype Hall & Clarke. New York state museum 



memoir 2. 1898. pi. r, fig. 13. 



Utica slate Holland Patent N. Y. 



W. P. Rust purchase 



