SUBJECT
Chemistry
Laboratory manuals
15
Biochemistry
11
Chemistry, Organic
11
Physics
10
Problems, exercises, etc
10
History
7
Experiments
6
Mathematics
4
Programmed instruction
4
Study and teaching
4
Chemists
3
Data processing
3
Research
3
Study and teaching (Higher)
3
Textbooks
3
Atomic bonds
2
Atomic theory
2
Chemistry, Analytic
2
Chemistry, Physical and theoretical
2
Computer simulation
2
Periodicals
2
Qualitative
2
Study and teaching (Secondary)
2
Study guides
2
Tables
2
Analysis
1
Best books
1
Bibliography
1
Biography
1
Biology
1
Catalysis
1
Charts, diagrams, etc
1
Chemical Education Material Study
1
Chemical elements
1
Chemistry teachers
1
Collected works
1
College entrance achievement tests
1
Color
1
Composition
1
Dimensional analysis
1
Dyes and dyeing
1
Electronic spreadsheets
1
Encyclopedias
1
Engineering mathematics
1
English
1
Examinations, questions, etc
1
Food
1
Group theory
1
Handouts, manuals, etc
1
more ...