mention these two localities because I found them myself and I therefore know that everything on the spot was collected.
No. 28 consists of a few more objects. I came across them south of camp B 61 on wind-eroded yardang-ground about 50o m. from the southern bank of the river. They were lying scattered in 2 m. deep hollows as well as on adjacent yardangs covering an area of about 6o m. in diameter. There are no typical cores and only three small flakes. Pl. 4: 13 is a willow-leaf arrow-head of agate of the same shape and make as those from Singer in Quruq-tagh. Pl. 4: 14, a fragmentary arrow-head of green flint, has the base shaped into a short tang, a feature that does not occur among the flint points of Inner Mongolia; STEIN gives a picture of one complete specimen from his Fort L. E. Besides an uncertain small scraper there are small knife-like implements worked on both sides, Pl. 4: 6, 4: 9 and 5: 9, and a small bifacial instrument Pl. 4: 17. A couple of larger flint pieces are "raw material" for making chips, and there is a certain number of refuse chips.
Mr. CHEN found the place No. 30 on the south bank of the river. The four cores and the four small flakes of agate and flint are very similar both in shape and material to those found closer to the lake.
In HÖRNER'S and CHEN'S collection from 1931, containing about 280 objects, there are artifacts from five probable dwelling sites.
HÖRNER found a rich site about 14 km. WSW of the Lou-lan station in a sandy depression in wind-eroded clay. The place bears the number K. 13375 in the descriptive list and 375 on the map Fig. 37. The following objects were collected : a fragmentary flint core or nucleus, sixty-five flint flakes, many of them with retouched edges as Pl. 5 : 3-4. Two narrow piercers or awls are made from small flakes. Besides there are some unworked chips. Now this is only the pick from the site and the material is of course rather limited to be labelled as representing a true dwelling site. This is still more the case with the following places.
K. 13395 (395 on the map) consists of a few flint flakes found near the southern border of the delta NNE of the Lou-lan station.
K. 13359 (359 on the map) is also only the pick from a site with hundreds of worked flints in a large wind-hollow, 4-5 m. deep, situated near the western border of the big salt crust. He collected three flint cores (Pl. 4: 18) and twenty-nine flakes, some of which have one or both edges retouched.
The objects K. 13363 were found in a region with several stray finds of a neolithic nature to the NE of the preceding place (cf. Nos. 362-365 on the map, and HÖRNER also noticed antiquities in this region which were not collected). Only a small potsherd and four flint flakes were taken from this site where flakes are said to be numerous.
K. 13431, finally, a place situated on the eastern side of the easternmost of the three freshwater bays in the northern part of Lop-nor. Here the neatly shaped bi-