J
Julius Schwartz
1907
12 works on record
Works
Elementary school science and how to teach it
1951
Magnify and find out why
It's fun to know why
Through the magnifying glass
Uphill and downhill
Spaceclusters
Spaceclusters
I know a magic house
I know a magic house
Comment fabrique-t-on le caoutchouc, le papier et le fer
Comment fabrique-t-on le caoutchouc, le papier et le fer
Now I know
Now I know
Go on wheels
Go on wheels
The earth is your spaceship
The earth is your spaceship
Earthwatch
Earthwatch