So FLORIDA GEOLOGICAL SURVEY-I3TH ANNUAL REPORT

 There is doubtless much room for improvement in the treatment of common names, for the writer does not often stop long enough in one place to interrogate the residents about the names they use for wild plants. Such names enclosed in parentheses are either general terms like grass and fern, or names used in Georgia or farther north, which may or may not be in common use in central Florida. But as a large proportion of the inhabitants of this area came from other states, and some who will read this report are now living in other states, these names ought to be more intelligible than they would be in a region which has had very little immigration.
 Statistics of population are taken from census reports, principally the U. S. census of 1910. It would have been interesting to carry the investigation back to 1830, when Florida first'figured in census returns, but previous to 1887 the counties in central Florida were so few and large that it would be difficult to get an adequate representation of any one region from county statistics. However, some figures illustrating the growth and composition of the population in the whole area in tie early days are given in the general disctission. Quite a number of additional data are taken from the state census of 1915, which however does not go into as much detail as the government censuses, and is not so free from typographical errors. At this writing the only returns of population from the U. S. census of 1920 available are the total population of all the countie s and some of the cities and towns, but those have been used as far as they go. (It will probably be several months yet before a full analysis of the 1920 population by race, nativity, etc., is obtainable.)
 The 19ro census is also the main source of statistical information about agricultural conditions, though others, as far back as 1850have been utilized as far as possible.. The state agricultural department took censuses of agriculture in connection with population in 1895 and 1905. and in recent.-years has taken censuses of crops, livestock, etc., at biennial intervals. These' biennial enumerations subdivide the crops more minutely than the government censuses (which lump together most kinds of vegetables) ever did, and indicate the valie of each crop in each county, but give little or no information about the number and size of farms, color and tenure of farmers. value of land. buildings and other property, and expendittires for labor. feed, fertilizers, etc. Worse still, they are marred hv so many clerical or tvographical errors that they have to be