Germany, by E. Crous.--Italy, by G. Fumagalli.--France, by C. Mortet.--Holland and Belgium, by M. Sabbe.--Spain and Portugal, by J. P. R. Lyell.--Great Britain and Ireland, by H. R. Plomer.--Scandinavia, by L. Nielsen.--Eastern Europe and Slavonic countries, by L. C. Wharton.--Spanish America, by G. P. Winship.--North America (English-speaking), by L. C. Wroth.--Appendix--Asia, Africa, Australasia.--Index of printers and places.