.X 



A (^ 



co:n^tekts 



Page 



Introduction 5 



Preface 7 



Classification explained 8 



Tables 19 



Index to the tables 137 



Appendix 615 



ABBREVIATIONS 



(Circ. ) Single-sheet publication, unnumbered. 



Cong Congress. 



c. t. o Cover title only. 



D. C Di.strict of Columbia. 



ed Edition. 



H. ex. doc House executive document. 



H. mis. doc House miscellaneous document. 



1 Leaf, leaves. 



n. d No date. 



n. p No place. 



n. t. p No title-page. 



p. , pp Page, pages. 



pt.,pts Part, parts. 



pi Plate, plates. 



por Portrait. 



rev Revised. 



S. ex. doc Senate executive document. 



S.mis.doc Senate miscellaneous document. 



Serial no Serial numbes first assigned to 



bound volumes of Congressional 

 documents in Document Check- 

 list, 2d ed., 189.'), and continued 

 in document indexes of 65th 

 and subsequent Congresses. 



sesa Session. 



U. S United States. 



V Volume, volumes. 



f ° Folio. 



4" •■. Quarto. 



8» Octavo. 



120 Twelvemo. 



16" Sixteenmo. 



24» Twenty-fourmo. 



32» Thirty-twomo. 



3 . 



