REFERENCES TO Puates. 
Plate I. 
1. Surirella pulchra, n. sp. 
2. Febigerii, n. sp. 
3. ovata (sporangial). } 
4. Cymatopleura marina, n.sp. a, V. b, F. V. 
5. Amphiprora conserta,n.sp. a, F. V. b. F. V., 
shew the plates. c, V. d, end view of several frustules i i 
6. Amphiprora Nereis, n.sp. a, F. V. b, V.x800. 
Plate I. 
. Naviculamarginata, n..sp.- a, F. V. b, V. 
Poweli, n. sp. . 
?n. sp. 
Mastogloia an gulata, n. sp. 
exigua, 0. sp, a,-V. b, F. ¥.x 600. sae 
. Navicula trinodis. a, V. b, variety from St. Mary’ s in ¢, F ey: 
. Pinnularia (Navicula) polyonoa. - 
. Podosphenia Baileyi. a, F. V. b, V. a a 
. Asterionella Bleak leyi. : 
10, Asterionella ? From same locality as A. f ormo Ss a—Long a 
coming, N. J. | 
11. Navicula permagna. Var. i et? is 
SO MIS OTB 0 bo 
[Where not otherwise specified, the magnifying power used ra been 500 | rel 
diameters. | ut *y ey if 
CVanBron 
