436 MESOZOIC FLUKAS OF L^riED STATES. 



parallel to the fracture is 27 cm. The partial diameter represented by 

 the Ksectiou is 20 cm. Its maximum height is 11 cm., l)ut the vertical 

 thickness in places is reduced to less than 5 cm. The girth is 76 cm., 

 indicating a circumference for the whole trunk of about So cm. The 

 polished section affoi'ds a clear view of the internal structure. 



PI. LXXXVII, Fig. i\', 15, gives a side view of the Inglehart frag- 

 me;it, No. 1, W. C, B., No. 3325. This specimen consists of a semicirculai- 

 section of a small trunk, taken probably' from above the middle. The 

 vertical fracture is a nearly even plane through about the center of the 

 axis, but leaving a hollow trough below, formerly occupied by the medulla. 

 The lower transverse fracture is also even and horizontal. The upper 

 fracture has carried away a small part of the apex, and there is besides an 

 eroded cavity. The trunk was 12 cm. high and 16 cm. in diameter. 

 (Locality: PI. LXXX, No. 96.) 



PI. LXXXVII, Fig. V, 8. caUed the Deakins fragment, W. C, B., 

 No. 3055, is a small piece from one of the thin edges of a greatly laterally 

 compressed trunk, probably of small size and perhaps representing most 

 of its length, but showing neither base nor summit. The fracture runs 

 out alDove where the summit began to round off. At the lower end it 

 is very irregular, reaching farther down at the outer edge and on one side. 

 The vertical fracture is moderately even and mostly parallel to the axis. 

 The specimen is reduced to a mere slab, and probably includes much less 

 than half of the trunk, but the organs are all present over the siu'face on 

 both sides. There is a sort of crook or bend near the middle, and in the 

 angle thus made on one side there is a nearly circular depression 2 cm. 

 deep, the result of decay. The color is very dark, almost black, on one 

 side. The rock is moderatel_y firm and hard, but not heavy. The 

 length is 25 cm., the width 12 cm., and the thickness 7 cm. (Locality: 

 PI. LXXX, No. 128.) 



PI. LXXXVII, Fig. V, 9, shows a little of the surface of the Luther 

 Welsh fragment, W. C, B., No. 3323, which is a small slab broken from 

 the side of a small trunk near the top. The trimk was flattened laterally, 

 and the main fracture is a tangential plane starting from the narrow side 

 or edge, which would have come out on the broad side but for a second 

 minor fracture at right angles to it which removed a portion of the thinner 

 edge. Both fractures are even and straight, the principal one parallel to 



