46 RESEARCH IN CHINA. 



The assembling of the various geologic sections for the purpose of corre- 

 lating them and their contained faunas led to the construction of fig. 9, 

 on page 45, in which each section is assigned its approximate position 

 in relation to the other sections and to a theoretically entire section. The 

 various finds of fossils are given the same locality number as in the sections 

 already described and in the list of localities [pp. 15-27]. 



SECTION IN MANCHURIA. 



The following section was measured by Prof. Joseph P. Iddings on the 

 island of Tschang-hsing-tau, Province of Liau-tung, Manchuria. Read from 

 the top downward : 



Feet. 



Massive dark gray limestone, in places mottled 200 



About 500 feet of thinly bedded nodular limestone and shale. Hard and upturned, with occa- 

 sional signs of trilobites. Locality 36/ is in the upper portion of this belt 500 



About 300 feet of massive limestone, in places oolitic. Locality 36; 300 



20 feet of shale followed by thinly bedded limestone. Locality 359 20 



Huge concretions resembling corals 4 to 6 feet in diameter in thin buff shale. Locality 361 .... 4-5 

 More abundant shale, less limestone and green, dark gray, and brownish shales with thin layers 



of nodular limestone. Locality 35/> 200 



The exact connection is not shown of localities 35^, 357-, s6c, and 36e: green and purple shales. . 

 White quartzitic sandstone in low cliff's, only narrow belt exposed 



Total 1,225 



Notes on Horizon of Collections. 



Localities 357;, 35r, 36c, 36<f, and 36^ are very nearly the same horizon, being located above a low bluff , 

 10 feet high, with nearly horizontal strata in places slightly folded and faulted. These are the 

 lowest beds and not far above the basal. 



Locality 35^ is about 80 feet higher up in the shales and limestone. 



Locality 36/1 is about 50 feet higher than No. 35^. 



Localities 36g and 350 are back from the bluff on drainage cuts in shale about the horizon of No. 36^, 

 I judge. 



Locality 359 is about 70 feet higher up than No. 36/1. 



Locality 3&/ is the highest from which fossils were collected and is possibly 800 feet higher up than No. 36*:. 



