Association of American Geologists + 1 Naturalists. 315— 
homocercal forms of the fishes which are found as we ascend above the 
lias He referred likewise to the Ornithoidichnite which he had found 
red sandstone of the Middle States of the Union ; and noticed in con- 
nection with these tracks, the interesting discoveries of the bones of a 
gigantic struthoid bird, which formerly existed in New Zealand, the 
Dinornis of Prof. Owen, a good account of which was to be found in 
the Penny Cyclopedia for March, 1843, Vol. xxvi, p- 518.* me 
In continuation Mr. R. then referred to the fossil rain-marks which 
are found in the same rocks, and submitted some remarkably well 
characterized specimens, from different parts of New Jersey and Mas- 
sachusetts. He showed that an objection which had been made at the 
¢ these rain-marks, founded on their 
urface of the rock, in some observed 
unburnt bricks were ‘exposed to 
apparently in relief. He found that the circumstances most favorable 
New Jersey belonged. to the upper divisio 
the same name in Europe. One fact whic 
i‘ portionate iy ane ee ra oh . 
rain-drops gave evidence of the strength of the shower ensuing. 
* See this Vol. p. 185. 
