Contents or Abstract: '; “...Maps are given call numbers as follows: 000s: The World and Heavens 100s: British Isles 200s: Other European and Asian countries 300s: North America 400s: States other than Penna. 500s: Pennsylvania places other than Philadelphia 600s: Philadelphia No 700s 800s: Australia, Oceania, Pacific Islands and Oceans 900s: Military war maps LC call numbers: recent street maps...”

Contents or Abstract: '; “...Maps are given call numbers as follows: 000s: The World and Heavens 100s: British Isles 200s: Other European and Asian countries 300s: North America 400s: States other than Penna. 500s: Pennsylvania places other than Philadelphia 600s: Philadelphia 700s: Caribbean, Central America, and South America 800s: Australia, Oceania, Pacific Islands and Oceans 900s: Military war maps LC call numbers: recent street maps...”