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
0
audioformat on the Internet. For more information, or to volunteer, please visit librivox.org.
D
Cover image: tesseract frame courtesy of Jason Hise.
Cover designed by Availle.This design is in the public domain.
5'
JO