Atlanta. Bar Association of N. Y. East Orange. Iowa State Library. John Crerar Library. Kansas State University. Kings County Medical. N. Y. City Circulating Department. N. Y. City Reference Department. N. Y. State Library. N. Y. Society Library (accessions only expensive art books). Newberry Library. Oberlin College. Pratt Institute Free Library. St. Louis Mercantile Library. St. Louis Public Library. Syracuse University. Tulane University. Virginia State University. Wesleyan University. Westminster College. =Libraries Using Bill Method= Boston Athenaeum. Forbes Library. =Charging and Discharging= The data contributed on this subject are so uneven and varying that any accurate and minute comparison is impossible at present. The functions that constitute a charge or discharge are variously regarded by different libraries. The eighteen libraries forming the basis of this study, with a note of their charging systems, may be roughly arranged in the following groups: =College or University Libraries= Oberlin. Double file. Borrowers' file and book file under date. Syracuse. Double file. Borrowers' file and book file under call-number. University of Kansas. Double file. Borrowers' file and book file under date. Tulane. Single file. Book file under class. Wesleyan. Double file. Borrowers' file under date and book file. Westminster. Single file. Book file under date. =Public or Circulating Libraries= Boston Athenaeum (Subscription). Double record. Borrowers' file and book record under date. Carnegie Library of Atlanta. Newark System (no details). East Orange Public Library. Newark System (many variations). Forbes Library. Browne System. New York Public Library. Newark System. Pratt Institute Free Library. Newark System. St. Louis Mercantile Library (subscription). Browne System. St. Louis Public Library. Newark System. =State Libraries= Iowa State. Reference. (Uses temporary slip when a book is issued for home use filed under date.) Virginia State. Double file. Borrowers' file and book file by titles. =Reference Libraries= Newberry Library. No attempt has been made to study the charge or discharge of books for library use. =Society Library= Medical Society of King's County. Borrowers' record. Reversing this arrangement and grouping under charging systems, we have: =Newark System--6.= Carnegie Library of Atlanta. East Orange Public Library. New York Public Library. Pratt Institute Free Library. St. Louis Public Library. Syracuse University (modified). =Browne System--2.= Forbes Library. St. Louis Mercantile Library. =Double File--Borrower and Book--6.= Boston Athenaeum. Oberlin College. Syracuse. University of Kansas. Virginia State Library. Wesleyan University. =Single File--Book File under Date or Class--3.= Iowa State Library. Tulane University. Westminster College.