56 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 64 



The assembling of the various geologic sections for the purpose 

 of correlating them and their contained faunas led to the construc- 

 tion of fig. 9, on page 57, in which each section is assigned its ap- 

 proximate position in relation to the other sections and to a theo- 

 retically 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. 17-34]. 



Section in Manchuria 

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

 on the island of Tschang-hsing-tau, Province of Liau-tung, Man- 

 churia. 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 occasional signs of trilobites. Locality 2>^f 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 35g 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 ZSP 200 



The exact connection is not shown of localities 3Sn, 2Sr, 36c, and 36^: 



green and purple shales 



White quartzitic sandstone in low cliffs, only narrow belt exposed 



Total 1,225 



Notes on Horizon of Collections 



Localities 3Sn, 35r, 36c, 36^, 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. 3SP- 



Localities 26g and 350 are back from the bluff on drainage cuts in shale about 

 the horizon of No. 36/1, I judge. 



Locality 359 is about 70 feet higher up than No. sSh. 



Locality 36/ is the highest from which fossils were collected and is possibly 

 800 feet higher up than No. 36c. 



DISCUSSION OF THE CAMBRIAN FAUNA OF CHINA 



The discussion of the fauna might be extended to include a de- 

 tailed comparison of each species with forms resembling it from 

 Cambrian formations in other parts of the world, but the illustra- 



