Page
|
Topic
|
At
left
|
Title
page
-
Book
II.
|
43-45
|
Work
in
the
strip
mines
in
the first
half
of
1939.
|
45-47
|
Work
in
the
strip
mines
during
July
1939.
|
48-53
|
Work
in
the
strip
mines
during
August
1939. |
54-59
|
Work
in
the
strip
mines
during
September
1939. |
59-62
|
Work
in
the
strip
mines
during
October
1939. |
62-64
|
Work
in
the
strip
mines,
November
&
December 1939. |
65-66
|
Building
up
the
collection.
|
66-67
|
Packing
and Animal
Forms.
|
68-76
|
Fossil
collecting
localities.
|
81-85
|
The
spreading
ocean
floor.
|
86
|
Chicago,
Illinois,
November
1,
1946
-
April 1, 1947.
|