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Obituary, Professors L. H. Morgan and John W. Draper.

569

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Rocks and Soil, Effects of Lightning on. (Illustrated.)

655

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Science, A Half-Century of.......

65, 193

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Sea-Water, Does it contain Free Carbonic-Acid Gas?

428

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Temperature, Influence of, on the Chirp of the Cricket
Thomson, Sir William.

Tiflis, The Archæological Congress at..

Time, A Glimpse through the Corridors of ...

Time-keeping in Paris. (Illustrated.).

To Eat and to be Eaten..

Towne, Edward C.....
Transcendental Physics.
Trees, Fossilized Standing.
Trouve's Electric Canoe..

Trowbridge, C. A., Letter from.
Trowbridge, Professor John....

Tyndall, Professor John...

286

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609

109

315

429

137

122

507

650

424

Typography and Eye-sight....

Vegetable Structures, Permanence of..

861

Venus, Approaching Transit of.....

857

Vision, Experiments in....

142

Volcanic Products. (Illustrated.).

Volcanoes, The Supposed, in Central Asia.

Volcanoes: Their Action and Distribution. (Illustrated.)

Vortex-Rings, Studies of. (Illustrated.)

Ward, Stanley M.......

Warner, Dr. Francis..

Whales and their Habits

Winslow, Erving..

Winslow, Lieutenant Francis.

Woman Question, The, from an Anthropological Point of View
Word-Blindness.

World-Problems, The Seven..

Worry

Yandell, David W....

Yorktown Centennial, Further Lessons of the.....

END OF VOL. XX.

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