# "N" Rays

"N" RAYS
A COLLECTION OF PAPERS COMMUNICATED TO THE ACADEMY OF SCIENCES
WITH ADDITIONAL NOTES AND INSTRUCTIONS FOR THE CONSTRUCTION OF PHOSPHORESCENT SCREENS
BY
R. BLONDLOT
CORRESPONDENT OF THE INSTITUTE OF FRANCE PROFESSOR IN THE UNIVERSITY OF NANCY
TRANSLATED BY
J. GARCIN
INGÉNIEUR E.S.E., LICENCIÉ-ÈS-SCIENCES
WITH PHOSPHORESCENT SCREEN AND OTHER ILLUSTRATIONS
LONGMANS, GREEN AND CO.
39 PATERNOSTER ROW, LONDON
NEW YORK AND BOMBAY
1905
All rights reserved
TABLE OF CONTENTS
* PAGE
* Preliminary Notice................................................................................................................................................................................................................................................................................................................................................................................................vii
* Introduction by the Translator................................................................................................................................................................................................................................................................................................................................................................................................ix
* On the Polarization of "X" Rays................................................................................................................................................................................................................................................................................................................................................................................................1
* On a New Species of Light................................................................................................................................................................................................................................................................................................................................................................................................7
* On the Existence, in the Radiation Emitted by an Auer Burner, of Rays Transmissible Through Metals, Wood, etc.................................................................................................................................................................................................................................................................................................................................................................................................13
* On New Sources of Radiations Transmissible Through Metals, Wood, etc., and on New Actions Produced by These Radiations................................................................................................................................................................................................................................................................................................................................................................................................18
* On the Existence of Solar Radiations Capable of Traversing Metals, Wood, etc.................................................................................................................................................................................................................................................................................................................................................................................................24
* On a New Action Produced by "N" Rays, and on Certain Facts Connected with These Radiations................................................................................................................................................................................................................................................................................................................................................................................................28
* On New Actions Produced by "N" Rays; Generalization of Phenomena Already Observed................................................................................................................................................................................................................................................................................................................................................................................................34
* On the Storing of "N" Rays by Certain Bodies................................................................................................................................................................................................................................................................................................................................................................................................38
* On the Strengthening Action of a Beam of Light on the Eyes, When the Beam is Accompanied by "N" Rays................................................................................................................................................................................................................................................................................................................................................................................................43
* On the Property of Emitting "N" Rays Conferred on Certain Bodies by Compression, and on the Spontaneous and Indefinite Emission of "N" Rays by Hardened Steel, Unannealed Glass, and Other Bodies in a State of Strained Molecular Equilibrium................................................................................................................................................................................................................................................................................................................................................................................................48
* On the Dispersion of "N" Rays and on Their Wave-Length................................................................................................................................................................................................................................................................................................................................................................................................53
* On the Photographic Registering of the Action Produced by "N" Rays on a Small Electric Spark................................................................................................................................................................................................................................................................................................................................................................................................61
* On a New Species of "N" Rays................................................................................................................................................................................................................................................................................................................................................................................................68
* On Peculiarities Presented by the Action Which "N" Rays Exercise upon a Dimly Lighted Surface................................................................................................................................................................................................................................................................................................................................................................................................72
* On the Comparative Action of Heat and "N" Rays on Phosphorescence................................................................................................................................................................................................................................................................................................................................................................................................74
* Complementary Notes................................................................................................................................................................................................................................................................................................................................................................................................77
* Instructions for Making Phosphorescent Screens................................................................................................................................................................................................................................................................................................................................................................................................79
* How the Action of "N" Rays Ought to be Observed................................................................................................................................................................................................................................................................................................................................................................................................82
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