A system of classifying and coding entomological information from the world literature on arthropods which affect the health and comfort of man onto punch cards was developed to provide a method for readily recovering this information for immediate use. More than 700 journals and other scientific publications from which data for coding may be drawn are listed. Titles are arranged alphabetically nd are numbered for entry on punch cards, which also indicate the author and date of publication. A geographic code for the world listing major administrative subdivisions for most countries, indicates the geographical areas for recording entomological data on punch cards. A world map is inclosed to aid in the identification of the major geographic l entries. The classification for subject matter co ins 9 categories of information for which space is assigned on the cards. Included are designations for genus, species, geographical range, seasonal activity, breeding habitat, and disease relationships. (Author).

Trees by their very nature are landmarks and memorials. They are therefore identified with human happenings. Trees also have more than the allotted life span of man and carry their association through generations of men and women. Thus they often figure not only in biography but also in history.