20. _Brewster, Polk County._—In his report of 1915 (p. 106, fig. 36) Dr. E. H. Sellards figured a fragment of a tusk, found in a phosphate mine, which he supposed might belong to _Gomphotherium floridanum_. He figured also a tooth (p. 104, fig. 34) which he definitely referred to this species, but it is not clear that it was found at Brewster. A list of the species found associated with the tusk will be found on page 380. Among these species is _Mammut progenium_, a species ranging from the Aftonian to the Late Wisconsin. While all the species of the list are referred by Sellards to the Upper Miocene or Lower Pliocene, _M. progenium_ appears to favor a later reference. 10. _Pains Creek, Polk? County._—In the collection of the Academy of Natural Sciences, Philadelphia, is a tooth of _Mammut americanum_ recorded as having been found on Pains Creek, 50 miles from Tampa. It appears to be a second milk molar; the length is 43 mm., the width at the second crest likewise 43 mm. There is a Big Pains Creek in the northwestern corner of Polk County, which empties into Peace Creek. A little further south is Little Pains Creek, which empties into Peace Creek in De Soto County, near Bowling Green. On which of these the tooth was found can not be determined. 11. _Peace Creek, De Soto County._—In the U. S. National Museum (No. 1990) is an upper right hindermost molar recorded as having been found on Peace River. It was a part of the exhibit of the Plant System at the Centennial Exposition at Atlanta, Georgia. It is credited also to the Peace River Phosphate Company. Probably the tooth was found somewhere not far from Arcadia. Leidy (Bull. 84, U. S. Geol. Surv., p. 129) does not record the species from Arcadia, but his undetermined species of the genus may have been _M. americanum_. The tooth mentioned above has five cross-crests and a conical talon. At the ends of the transverse valleys are large tubercles. ALABAMA. (Map 5.) 1. _Bogue Chitto, Dallas County._—The U. S. National Museum contains 3 or 4 fragments of large molars of _Mammut americanum_ found not far from the town named. One fragment is labeled as having been found in section 10, township 17 north, range 7 east. This would probably be 6 or 7 miles west of north from the town named. Another fragment is said to have been found in the bed of Bogue Chitto. The teeth were sent to the U. S. Geological Survey by Crawford P. Lewis. From this same region there have been collected remains of _Elephas imperator_ and _Equus leidyi_. MISSISSIPPI. (Map 5.)