Subject
Description and travel
13
Botany
12
Natural history
12
Antiquities
2
History
2
Phytogeography
2
Wild flowers
2
Archaeology
1
Botanists
1
Botanists, Irish
1
Conservation and restoration
1
Cryptogamae
1
Down (Northern Ireland : County)
1
Geology
1
Gravel
1
History, Local
1
Indexes
1
Naturalists
1
Nature study
1
Periodicals
1
Phanerogamae
1
Phanerogams
1
Plants
1
Pteridophyta
1
Sempervivum
1
Travel
1
Weeds
1
Zoology
1