THIRD ANNUAL REPORT. PL. 27. PEAT PRAIRIES. Fig. i.-Peat prairie covering several hundred acres (locality No. 41), about a mile northwest of Haines City, Polk County. Clump of Magnolia glauca (bay) at left. Pine land in background. May i8, 1910. Fig. 2.-Large marshy prairie about 5 miles east of Greenville, Madison County (locality No. 42.) Trees all Taxodiumt imbricarium (pond cypress). May 24, 1910o. FLORIDA GEOLOGICAL SURVEY.