The majority of counties in the United States have published soil classifications that may be obtained from the Soil Conservation Service located in each county seat. One may then enter the soil name on the label. The bottom label gives the scientific name of the specimen, the author, the name of the person who made the identification, and the year in which the identification was made. In the three-label system, the collector s name is placed on a separate label and is positioned in the middle between the top and bottom labels. See Figure 17 for the recommended style.
Print labels with a crow quill or rapidograph pen using black India ink.
If a typewriter and copy machine are available, one may type the data and reduce the information to small but legible labels. Or if a computer and laser printer are available, one may type the label and have the printer reduce it to the desired size. For a large series of specimens, printed labels may be ordered from a commercial company. Do not make labels too large. It is preferable, however, to exceed this when pertinent data need to be given.