TY  - BOOK
AU  - Edward S.Ritchie & Sons
ED  - Samuel Gardner Drake Pamphlet Collection (Library of Congress)
TI  - Ritchie's illustrated catalogue of philosophical instruments and school apparatus
AV  - AC901 .D7 box 60, no. 15
PY  - 1866///?]
CY  - Boston
PB  - [Ritchie
KW  - Physical instruments
KW  - Catalogs
ER  -