A treatise on differential equations A.R. Forsyth
1921. 5th edition . 583 pages. No dust jacket. Green cloth with gilt lettering. Binding remains firm.Pages are moderately tanned. More pronounced tanning and foxing to free end papers and pastedowns. Pen inscription to front free end paper. Boards have heavy edge-wear with substantial bumping to corners, crushing to spine ends and rub wear all over. Strong tanning to spine and edges.