THE MARYLAND CYCADS. 445 



the vertical tangential fracture was parallel to the minor axis. It is 

 18 cm. high and the small diameter is 13 cm. In the direction of the 

 long diameter it now measures the same, indicating that it was 20 cm. 

 Neither the base nor the summit is perfect. The medulla is wanting 

 for the lower half of its length, leaving a hollow cavity. (Locality: 

 PL LXXX, No. 99.) 



PI. LXXXVII, Fig. V, 11, shows the exterior of the Magruder frag- 

 ment, W. C, B., No. 1489, to be treated more fully further on. 



PI. LXXXVII, Fig. V, 13, is a fairly good view of the Emmons 

 fragment, W. C, B., No. 3346. It comes from a trunk that was prob- 

 ably large, apparently broken from one side near the base, and having 

 a concave interior corresponding to the convex surface. It is broader 

 at the irregularly broken upper end, the contracted base appearing to 

 be nearly normal. One side is thicker than the other and probably 

 represents the narrow side of an elliptical trunk. It is of a very light 

 color, almost white in places, and chalky white where freshly bruised. 

 It is also very light and spongy in structure, resembling bone, and 

 friable. It is 18 cm. high and has a maximum tangential width of 21 

 cm. (Locality: PL LXXX, No. 62b.) 



PL LXXXVII, Fig. V, 14, shows the Odensoss fragment, W. C, 

 B., No. 3347. This fragment seems to belong to a small trunk which 

 was considerably compressed laterally, and to represent the upper part 

 of one of the narrow sides. It is nearly half of a cone, broken irregu- 

 larly at the top and somewhat obliquely at the bottom. The missing 

 central parts have left a hollow for the entire length. It is of a very 

 light color and ashy appearance, rather soft, and of low specific gravity. 

 Its maximum height is 16 cm., but on one side it is only 11 cm. It 

 is 14 cm. in diameter below and 8 cm. at the top. The radial thickness 

 varies from less than 5 cm. to over 7 cm. (Locality: PL LXXX, No. 31.) 



PL LXXXVII, Fig. V, 16, is a somewhat unsatisfactory view of 

 the Anderson fragment, W. C, B., No. 6346, which will be fully trea|:ed 

 below. 



PL LXXXVII, Fig. V, 18, is the only illustration we have of the 

 R. T. Donaldson fragment, No. 4, W. C, B., No. 3326. It is a very 

 small fragment, probably from a small trunk. It has the appearance 

 of a piece of a trunk only 9 cm. in diameter, but is more probably from 

 the thin edge of a laterally much compressed trunk. 



