Seánra
- Congresses 498 toradh
- Periodicals 255 toradh
- Biography 144 toradh
- Problems, exercises, etc 65 toradh
- Popular works 46 toradh
- Handbooks, manuals, etc 42 toradh
- Textbooks 40 toradh
- Juvenile literature 37 toradh
- Observations 36 toradh
- Tables 25 toradh
- Dictionaries 24 toradh
- Laboratory manuals 20 toradh
- Maps 14 toradh
- Encyclopedias 12 toradh
- Early works to 1800 10 toradh
- Miscellanea 9 toradh
- Atlases 6 toradh
- Bibliography 6 toradh
- Early works to 1850 5 toradh
- Examinations, questions, etc 5 toradh
- Anecdotes 4 toradh
- Case studies 4 toradh
- Charts, diagrams, etc 4 toradh
- History 4 toradh
- Observers' manuals 4 toradh
- Pictorial works 4 toradh
- Statistics 4 toradh
- Abstracts 3 toradh
- Indexes 3 toradh
- Correspondence 2 toradh
- Diaries 2 toradh
- Folklore 2 toradh
- Rocket observations 2 toradh
- Study guides 2 toradh
- Terminology 2 toradh
- Amateurs' manuals 1 toradh
- Bathymetric maps 1 toradh
- Catalogs 1 toradh
- Comic books, strips, etc 1 toradh
- Fiction 1 toradh
- Formulae 1 toradh
- Genealogy 1 toradh
- Guidebooks 1 toradh
- Humor 1 toradh
- Interviews 1 toradh
- Observers manuals 1 toradh
- Remote-sensing images 1 toradh