Outline A Generalia.
A General works.
Ae General encyclopedias.
Ap General periodicals.
Ar Reference works.
As General societies.
B-D Spiritual sciences.
B Philosophy.
Ba-Bf National Philosophies and Systems of philosophy.
Bg Metaphysics.
Bh Logic.
Bi Psychology.
Bm Moral Philosophy.
Br Religion, Natural theology.
Bt Religions Bu Folk-lore.
Ca Judaism.
Cb Bible.
Cc Christianity.
Cce Patristics.
Ce Apologetics, Evidences.
Cf Doctrinal theology.
Ck Ethical theology.
Cp Ritual theology and church Polity.
Cx Pastoral theology.
Cz Sermons.
D Ecclesiastical history.
Dk Particular churches and sects.
E-G Historical sciences.
E Biography and Portraits.
F-Fz History.
F Universal history.
F02 Ancient history.
F03 Modern history.
F04 Medieval history.
F11-F99 History of single countries (using local list).
Fa-Fw Allied studies, as Chronology, Philosophy of history, History of Civilization, Antiquities, Numismatics, Chivalry, Heraldry.
G Geography, Travels.
G11-G99 Single countries (using local list).
Ga Ancient geography.
Gf Surveying and Map-making.
Gz Maps.
H Social sciences.
Hb Statistics.
Hc Economics.
He Production.
Hf Labor.
Hi Slavery.
Hj Transportation.
Hk Commerce.
Hm Money.
Hn Banking.
Hr Private finance.
Ht Taxation and Public finance.
Hu Tariff.
Hw Property, Capital.
Hz Consumption.
I Demotics, Sociology.
Ic Crime.
Ig Charity.
Ih Providence.
Ik Education.
J Civics, Government, Political science.
Ju Constitutions and Politics.
K Law and Legislation.
Kd Public documents.
L-Q Natural sciences.
L General works, Metrics.
_L Number and space._ Lb Mathematics.
_Lh-Lr Matter and force._ Lh Physics.
Lo Chemistry.
Lr Astronomy.
_M-Q Matter and life_ M Natural history.
Mg Geology, incl.

Mineralogy, Crystallography, Physical geography, Meteorology, Paleontology.
My Biology.
N Botany.
Cryptogams.
Phanerogams.
O Zoology.
Invertebrates.
P Vertebrates.
Pg Mammals.
Pw Anthropology, Ethnology, Ethnography.
Q Medicine.
Q-Z Arts.
R General works, Exhibitions, Patents.
Rd-Rg Extractive arts.
Rd Mining.
Re Metallurgy.
Rf Agriculture.
Rh Horticulture.
Ri Silviculture.
Rj Animaliculture.
Rq Chemic arts.
Rt Electric arts.
Ry Domestic arts.
Rz Food and Cookery.
S Constructive arts, Engineering.
Sg Building.
Sj Sanitary engineering.
Sl Hydraulic engineering.
St Transportation and Communication.
T Fabricative arts, Machinery, Manufactures, and Handicrafts.
U Protective arts, i.e., Military and Naval arts, Life-preserving, Fire fighting.
V Athletic and Recreative arts, Sports and Games.
Vs Gymnastics.
Vt Theater.
Vv Music.
W Fine arts, plastic and graphic.
We Landscape gardening.
Wf Architecture.
Wj Sculpture.
Wk Casting, Baking, Firing.
Wm Drawing.
Wp Painting.
Wq Engraving.
Wr Photography.
Ws Decorative arts, including Costume.
X-Yf Communicative arts (by language).
X Philology.
X Inscriptions.
X Language.
Y Literature.
Yf English Fiction.
Z Book arts (making and use of books).
Za-Zk Production.
Za Authorship.
Zb Rhetoric.
Zd Writing.
Zh Printing.
Zk Binding.
Zl Distribution (Publishing and Bookselling).
Zp Storage and Use (Libraries).
Zt Description (Zt Bibliography; Zx Selection of reading; Zy Literary history; Zz National bibliography.).