on c	rhe Mrh diirnGnslon sirmpuy explained	T
c c 0 E	Henry p. mtannlng	ID L
E a	In January 1909 a friend of the Scientific American paid 500$ to be awarded as a	J a
X	prize for the best popular explanation of the 4th Dimension. The object being to set	i n
	forth in an essay not longer than 2500 words the meaning of the term so that the lay	lu 3
73	reader could understand it. 245 essays were submitted; the 500$ prize was	W
0 r	awarded to Lieut.-Col. Fitch, Corps of Engineers, USA, and the essay was	0 3
'□	published in the Scientific American of July 3rd 1909.	Ui
J n	Despite the character of the subject, extraordinary interest was manifested in the	i
n H	contest and essays were received from almost every civilized country. Because of	'D r
0	this, it has seemed advisable to preserve a few of the essays which were submitted.	c
JQ J	Prof. H. P. Manning (Brown Univ.) has chosen essays which lend themselves best	Q H 7)
a e	for the purpose of a popular book on the Fourth Dimension, i.e., those which
E in c	present the subject from as many different points of view as possible. 22 of the	r □
essays are collected in this book.	5' Q
0 in c	gggcI Pop Ubnluox.ong by nuoluLG	a
0 i	totol running rime ©:oe:oe	i 7)
r k	This LibriVox recording is in the public domain and may be reproduced, distributed or modified without	1
r J	permission. The LibriVox objective is to make all books in the public domain available, for free, in	O
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	Cover image: tesseract frame courtesy of Jason Hise. Cover designed by Availle.This design is in the public domain.	5' JO