FLORIDA GEOLOGICAL SURVEY. 
FIFTH ANNUAL REPORT. PL. 4. 
Fig. 1.—Mastodon tooth from T. A. Thompson’s mine at Neals, Fla. 
This tooth has the gray phosphatic sands of the phosphate formation 
firmly adhering to it indicating that it came from the phosphate formation. 
Natural size. 
Fig. 2.—Mastodon tooth from T. A. Thompson’s mine, Neals, Fla. 
The gray phosphatic sands clinging to the tooth are evident in the photo¬ 
graph. This tooth shows very little wear. Natural size. 
