Saturn! 
POSTERS • SLIDES 
Voyager has done it again! We now 
have two beautiful full-color posters of 
everyone's favorite planet, Saturn! One 
shows only Saturn, the other is a mon- 
tage showing the ringed planet and six 
of its moons 
We are also offering a set of ten 
slides from the Voyager-Saturn en- 
counter 
□ Enclosed is S4.50 prepaid for both 
posters. 
□ Enclosed is S5.00 prepaid for set of 
10 slides. 
Add $1.00 for our complete catalogs. 
Foreign orders add $1.00 postage 
DEPT NH 
Hansen Planetarium 
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the hall. “Meteorites,” says Prinz, who 
is also chairman of the Department 
of Mineral Sciences, “are the Rosetta 
Stones of the origin of the solar system 
and planets. In order to understand 
the planets — including the earth — we 
have to study meteorites.” The hall, 
Prinz explained, will tell the story of 
meteorites: Where do they come from? 
What happens when they hit? What 
are they made of? What can they tell 
us about the birth of our solar system? 
In the new hall, illustrations, pho- 
tographs, colorful graphics, and the 
meteorites themselves will give Mu- 
seum visitors a dynamic picture of 
the latest knowledge about these ob- 
jects from outer space. The power of 
meteoritic impacts is brought to life 
on a five-foot video screen; visitors, 
for example, can watch film footage 
from the first expedition to investigate 
A major symposium. Meteorites and 
Planets, will mark the opening of the 
Arthur Ross Hall of Meteorites. On 
Wednesday, April 29, in the Auditorium, 
leading authorities on meteorites, the 
planets, and the solar system will discuss 
their research and the tremendous growth 
of knowledge about meteorites and the 
solar system since men first landed on 
the moon. The Special Supplement in 
this issue of Natural History includes 
articles by three symposium speakers. 
The symposium will be presented at 
a nontechnical level for the general pub- 
lic. Speakers will consider such questions 
as: What can meteorites tell us about 
the origin of the solar system? How do 
planets form and melt? What happens 
when meteorites hit? Did they play a 
role in the extinction of the dinosaurs? 
What are meteorites made of? The cost 
of the symposium is $3 for Museum mem- 
bers and students, and $5 for nonmem- 
bers. All those attending the symposium 
will have an opportunity to preview the 
new hall. 
A complete schedule of symposium 
events appears below: 
1:30 P.M. Introductory Remarks. Martin 
Prinz, chairman of the Department of 
Mineral Sciences; Thomas D. Nichol- 
son, director of the Museum; Arthur 
Ross, Museum trustee. 
1 :45 p.m. The Birth of Planetology. John 
Wood, Smithsonian Astrophysical Ob- 
servatory and Harvard University (see 
page 56). 
2:20 P.M. Meteorites as Rosetta Stones 
for Planetology. Lawrence Grossman, 
University of Chicago (see page 68). 
3:15 P.M. Meteorites Falling Everywhere. 
Donald Brownlee, University of Wash- 
ington and California Institute of Tech- 
nology (see page 72). 
3:30 P.M. Where Do Meteorites Come 
From? Clark R. Chapman, Planetary 
Science Institute, Tucson, Arizona. 
4:25 p.m. The Sky is Falling. Eugene 
Shoemaker, California Institute of 
Technology and U.S. Geological Sur- 
vey, Flagstaff. 
4:50 P.M. Question Period. 
5:15 to 7:00 P.M. Preview of the Arthur 
Ross Hall of Meteorites. 
(Dinner break) 
7:00 P.M. Ancient Meteorites, Planetary 
Beginnings, and Pandora’s Box. Gerald 
J. Wasserburg, California Institute of 
Technology. 
7:45 P.M. Question Period. 
7:50 P.M. A Grand Tour of the Planets. 
Ronald Greeley, Arizona State Uni- 
versity. 
8:35 P.M. Question Period. 
8:40 p.m. Where Do We Go From Here? 
Noel Hinners, director. National Air 
and Space Museum. 
9:10 p.m. Question Period. 
Jane Goodall Lecture 
Celebrated primatologist Jane Goodall 
will give a lecture at the Museum entitled 
The Chimpanzee: Portrait of the Best- 
known Ape. Using slides and film, she 
will discuss her research with the chim- 
panzee population of the Gombe Stream 
Reserve in Tanzania. Her project, now 
in its twentieth year, is one of the longest 
continuous studies of a wild animal pop- 
ulation ever undertaken. Goodall has wit- 
nessed family quarrels, reconciliations, 
the rise of dominant males, and the splin- 
tering of a chimpanzee community. The 
Chimpanzee is being presented by the 
Membership Office on Wednesday, May 
13, at 7:30 P.M. in the Auditorium. Tick- 
ets cost $4.50 for members, $7.50 for 
nonmembers. Associate members may or- 
der one ticket at the members’ price; 
participating and donor members may or- 
der up to four. Send checks to Jane Good- 
all Lecture, Membership Office. 
Asian Dance 
Modern and traditional dances of 
China, Japan, the Philippines, Tahiti, and 
other Far Eastern cultures will be pre- 
sented by the Asian-American Dance 
Theater. This free Education Department 
program will take place in the Auditorium 
on Sunday, April 5, at 2:00 P.M. 
Alvin Ailey Repertory Ensemble 
The acclaimed Alvin Ailey Repertory 
Ensemble will give a free dance concert 
in the Museum Auditorium on Wednes- 
day, April 15, at 7:30 p.m. The concert 
is sponsored by the Education Depart- 
ment and free tickets will be distributed 
beginning at 5:30 p.m. at the first-floor 
Information Desk. 
82 
