Series consists of letters received by the Clerk's Office, other than those received primarily from internal and external governmental agencies (for which see CRS 13).<br>The material is arranged chronologically by received stamp number. "File numbers" (as provided in the file list for this series) combine file and item numbers; for example, "089 001-078" refers to file 89, items 1 through 78. "Reference" numbers are consecutive numbers given to individual items regardless of which file they are part of. In other words, reference numbers "31114-31266" are another way of pointing to the same items indicated by the file numbers "089 001-078".<br>Access to these records is provided by the communications received index (CRS 14), which is arranged chronologically by received stamp number and includes for each entry the sender and subject. Access can also be obtained through the topical index (CRS 15).<br>For other series of letters received, see CRS 11 (1862-1916) and CRS 13 (special correspondence inward)