AC

1

-

199

Collections. Series. Collected works

1

-

195

Collections of monographs, essays, etc.

For collections published under the auspices of learned bodies (institutions or societies), see AS

801

-

895

Inaugural and program dissertations

901

-

995

Pamphlet collections

999

Scrapbooks

AE

1

-

90

Encyclopedias (General)

AG

1

-

600

Dictionaries and other general reference books

1

-

90

Dictionaries. Minor encyclopedias

Including popular and juvenile encyclopedias

103

-

190

General works, pocketbooks, receipts, etc.

195

-

196

Questions and answers

240

-

243

Wonders. Curiosities

250

Pictorial works

305

-

313

Notes and queries

500

-

551

Clipping bureaus. Information bureaus

AI

1

-

21

Indexes (General)

21

Indexes to individual newspapers

AM

1

-

501

Museums (General). Collectors and collecting (General)

10

-

101

Museography. Individual museums

111

-

160

Museology. Museum methods, technique, etc.

200

-

501

Collectors and collecting. Private collections

AN

Newpapers

For history and description of individual newspapers, see PN4891+

AP

1

-

271

Periodicals (General)

101

-

115

Humorous periodicals

200

-

203

Juvenile periodicals

AS

1

-

911

Academies and learned societies (General)

2

.5

-

4

International associations, congresses, conferences, etc.

AY

10

-

2001

Yearbooks. Almanacs. Directories

Here are classed general works only

30

-

1730

Almanacs

2001

Directories

Here are classed general works on theory, methods of compilations, etc.

AZ

20

-

999

History of scholarship and learning. The humanities

999

Popular errors, delusions and superstitions