- Musical Heritage Network Instrument Encyclopedia
Search for the musical instrument of your choice or browse through the collection by the Sachs-Hornbostel classification scheme or by geographical origin.
www.si.umich.edu/chico/instrument
- Encyclopedia of Astronomy and Astrophysics
Articles covering cosmology, galaxies, interstellar medium, stars, the solar system, space missions, theoretical concepts, and more. Subscription required.
eaa.iop.org
- Natural Color Diamond Encyclopedia, The
Features images and information on hundreds of diamond colors.
www.color-diamond-encyclopedia.com
- h2g2
Official home of the Earth Edition of The Hitchhiker's Guide to the Galaxy. Offers an unconventional guide to life, the universe, and everything.
www.bbc.co.uk/h2g2
- Household Cyclopedia, The
Collection of "10,000 receipts of use in all the arts of domestic and social life." Originally published 1881.
www.publicbookshelf.com/public_html/The_Household_Cyclopedia_of_General_Inf...
- Encyclopaedia of the Orient
With photos and sound; specializes in North Africa and the Middle East.
www.i-cias.com/e.o
- Meta-Encyclopedia of Philosophy
indexes Dagobert D. Runes' Dictionary of Philosophy (1942).
www.ditext.com/encyc/frame.html
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