FREE INSTITUTE OF SCIENCE 
VEGETATION OF SOUTH FLORIDA 
161 
lowering in the surface of the soil since that time. It is not likely, therefore, 
that the soil will ever again be sufficiently depressed to bring it under the level 
of the water, although it must be confessed that the period of observation has 
been entirely too short to make any definite prophecy in regard to the future. 
The organic matter, however, of the muck lands does not seem to be sub- 
ject to complete decomposition by the natural processes of decay. The | 
humic bodies, consisting largely of carbon, appear to be capable of resisting 
partially, if not altogether, the oxidation to which they are exposed by cultiva- 
tion. There is considerable danger, however, from fire, especially during the 
dry season. When fires are once started with dry muck, they continue to burn 
until the lands are flooded on the accession of the rainy season.” 
Several samples of muck were collected by Mr. Brett and his party while 
running the level line across the Everglades in February and March, 1907. 
MUCK SOILS FROM THE INTERIOR OF THE EVERGLADES 
Som No. 8.1 Som No. 11.1 
Per cent. Per cent. 
Mn KS , ТЫ АГ 2.25 2.21 
A a a ИЫГЫ tS 08 
IA DIOR К, E dia ib .! albo MA DO EU 19 10 
Nitrogen n Дар KT ЖД 3.16 2.58 
Taken 8 miles west of Pompano, " Taken 18 miles west st of Pompano. 
Climate of the Everglades.—The following tables, compiled from the rec- 
ords of the United States Weather Bureau, give the mean annual temperature 
and the highest and lowest temperatures at Jupiter and Ft. Myers for a 
period of nine years: 
MEAN ANNUAL, HIGHEST, AND LOWEST TEMPERATURES AT JUPITER AND 
FT. MYERS, 1898-1906 
| JUPITER. | Fr. Myers. 
RARO: | — | ишен | —.— — | Highest | Lowest 
Pl urin uring i luri 
| "A | thë Yoan. | the Vek, T М». | the wens: thie: Sexe, 
Low. | °F. T T | Hu SE. 
UO UOCE CPU VE alU | 787 or 31 72.6 94 28 
A A A ү Ф484 | os i 28 73.1 | 68 «1 28 
TI s es (v qc eed d | 74-3 038 | 31 72.3 92 | 34 . 
TTT 72.6 92 | 38 70.3 94 | 32 
pre Ии ЛЛУ E BARS | 74.4 | 06 38 743. | 94 31 
^os A A AA „ 06 | 36 71.8 04 35 
маз e Шула амо SEU | 85. | 04 | 30 Ria 04 34 
%% T E wee es n |o Uu 04 24 73.5 94. | 27 
vis e e ae AY 91 | 30 724 | 92 | 31 
