Professor Mendeleev in his "Principles of Chemistry" gives his reasons for thinking that the ether is a gas of the argon group, incapable of combination, with an atomic weight one-millionth of that of hydrogen and a velocity of 2,250 kilometers per second. [Eng. ed. 1905, vol ii, p. 526] [Quote from Le Bon's "The Evolution of Matter" page 89]

See Also

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aether
AFFINITY OF ETHERIC CAPSULES
Akasa - Ether: The First Duality
Akasa - Ether: The First Duality - Part II
Cayce Etheronic Device
compound etheric flow
COMPOUND INTERETHERIC NEUTRAL CENTER SEVENTH SUBDIVISION
Compound Interetheron
Discussion on the Ether
DISINTEGRATION OF ETHERIC CAPSULE
Ether
Ether - Ampere
Ether - Barton
Ether - Bernoulli
Ether - Black
Ether - Bloomfield-Moore
Ether - Cayce
Ether - Cullen
Ether - Einstein
Ether - Fitzgerald
Ether - Haeckel
Ether - Helmholtz
Ether - Hertz
Ether - Kant
Ether - Keely
Ether - Kelvin
Ether - Larmor
Ether - Lorentz1
Ether - Lorentz2
Ether - Maxwell
Ether - Michelson
Ether - Miller
Ether - Newton
Ether - Pond
Ether - Russell
ETHER - Snell
Ether - Steiner
Ether - Stranges
ether density
Ether of Space
Ether the True Protoplasm
ether theory
Etheric Capsule
etheric chord
etheric dominant
ETHERIC FIFTH SUBDIVISION
etheric flow
Etheric Force
Etheric Force Identified as Dynaspheric Force
Etheric matrix
Etheric Orbital Rotations
Etheric Rotation
Etheric Vacuum
Etheric Vibration. - The Key Force
etheriform element
INTERETHERIC SIXTH SUBDIVISION
Keelys Etheric Vapor
law of etheric compensation and restoration
light ether
Liquid Ether
Luminiferous Ether
Luminiferous Ether - Maxwell
MEASURING THE VELOCITY OF THE ETHERIC CAPSULE
Mendeleev Period Table
Michelson-Morley Ether Experiment
ROTATION OF THE ETHERIC CAPSULE
Russell - Ether to Unit
sympathetic etheric stream
The Ether and Its Functions
Vibratory Etheric Tree
What the Ether is