If the skull under examination is considered from a purely evolutionary standpoint, it must be pronounced to be in many points inferior to the average white and even to the majority of Indian crania. An anthropological identification of the specimen is difficult, for the reason that we are still very imperfectly acquainted with the craniology of the peoples of southwestern United States and northern Mexico. From what we know of the crania of the Pima, and the extinct Santa Barbara, Santa Catalina, etc., Californians, it is possible to say that the individual whose skull is here reported upon may have belonged to a people physically related to either of these groups. The skull is very distinct from that of an Apache. The female Seri cranium examined by me before does not show certain of the peculiarities of this specimen; nevertheless it is very possible that both crania belonged to individuals of the same tribe. ALEŠ HRDLIČKA. In making his examination, Dr Hrdlička compared the unquestionably authentic cranium of the entire skeleton with two skulls preserved in the American Museum of Natural History, viz., No. 99/84, designated as a skull of a Tiburon mound-builder, and No. 99/85, labeled as having been found in a shell mound at Tiburon, California; but, in view of the possible error in identification in these cases, the comparisons are omitted. Otherwise, Dr Hrdlička’s determinations are as recorded in the following report (and his drawings of the anterior and left lateral aspects of the cranium are reproduced in figure 6): [Illustration: FIG. 6—Anterior and left lateral aspects of Seri cranium.] REPORT ON AN EXAMINATION OF A SKELETON FROM SERILAND [By Dr Aleš Hrdlička, Associate in Anthropology, Pathological Institute, New York] _The Skeleton_ All the bones of the skeleton are present, except the sternum, the coccyx, a few of the teeth, and a few of the small bones of the extremities. It is a skeleton of a young adult, between 20 and 24 years of age, female. The age of the subject is indicated mainly by the unattached epiphyses of the long and some of the short bones, those epiphyses, namely, which are the last to coossify. The femininity of the subject is indicated by the generally slightly marked ridges, etc., of muscular attachment, and by the decidedly feminine character of the pelvis (light, well-spread ilia, broad subpubic arch) and of the skull (lack of supraorbital ridges, thin dental arches, small mastoids, etc.). There are no wounds or pathological conditions noticeable on the skeleton. Several peculiarities and anomalies are observable. They will be described with the parts they concern. The measurements to follow are expressed in centimeters. The French anthropometric methods and nomenclature have been adopted. _The Skull_