2? TH fT’. A UD WU BrOONe BW Dee 
study mammals. Drawings of skulls, teeth, footprints, and other character- 
istics aiding identification are scattered throughout the text. Most of the 
drawings are by Dr. Mohr. 
You may be surprised to learn that we still have coyotes, bobcats, badgers, 
and beaver in this state; that some mammals, such as the white-tailed deer 
and the beaver, have made a notable comeback in recent years. The book 
pictures and discusses extinct mammals, including the prehistoric, and in- 
cludes a detailed bibliography and an index. If your knowledge of our 
mammals extends no further than the obvious rabbit, squirrel, or mouse, 
we recommend that you obtain this book and open your eyes to a whole 
new wotld of nature at your feet. 
Paul H. Lobik, 22W681 Tamarack Dr., Glen Ellyn 
i iz eat 
STANDING ROOM ONLY: The Challenge of Over-Population, by Di. Karl Sax. 
Beacon Press, Boston. 206 pages, $3.00. The subject of population pressures 
on the land is gaining increasing attention. Dir. Harlow Mills chose it for 
his theme at the recent conference of the Natutal Resources Council of 
Illinois. One finds it discussed at civic forums, church groups and local 
lodges; magazines feature articles on the population explosion. 
As the population of the country has increased, we have become more 
aware of serious effects on hunting, fishing, boating, and bird-watching. We 
have seen the disappearance of forests and prairies and we realize the in- 
adequacy of our parks. But these are trivial compared to the greater prob- 
lems caused by a zooming population. The United Nations estimates that 
world population is increasing by 44,000,000 each year or 5,000 each hour. 
Dr. Sax says that today more than half of the world’s people live in 
Asia. But they live neither long nor well. Death takes a heavy toll. The 
balance between food supplies and population is so precarious that a slight 
decrease in food production brings famine. Two-thirds of the world goes to 
bed hungry every night. Up to now, America has escaped these misfortunes. 
We are blessed with an exceptional climate and an abundance of natural 
resources. World population pressures were relieved in the past by war, 
disease and immigration. It is apparent that the day of mass immigration 
is over; most nations have placed severe restrictions on newcomers. 
The book is filled with simple facts and figures which make reading easy 
and fascinating. It also contains an outstanding bibliography. A paragraph 
by Dr. Sax is worthy of quotation: (page 122) “The new frontiers of science 
should be able to make great contributions to both industry and agricul- 
ture. . . . If, however, population growth is not controlled effectively and 
rapidly, and if such large proportions of the world’s income and resources 
continue to be squandered on war or the preparation for war, the new 
frontiers of science can do little to solve the problems of poverty, ignorance 
and misfortune.” 
A 20-page leaflet, “The Population Bomb,” containing a summary of per- 
tinent facts, is free and available in small quantities from the Hugh Moore 
Fund, 51 East 42d St., New York 17, New York. 
Raymond Mostek, 615 Rochdale Circle, Lombard, Ill. 
