Labor in Europe : Reports from the consuls of the United States in th several countries of Europe on the rates of wages, cost of living to the laboring classes, past and present wages, &c., in their several districts, in response to a circular from the Department of state ... together with a letter from the secretary of state transmitting the same to the House of representatives.

Mode of access: Internet.

Plantes nouvellement découvertes récemment dénommées et classées, représentées en gravures, avec leurs descriptions ... /

Mode of access: Internet.

Colby stories as told by Colby men of the classes 1832 to 1902.

Mode of access: Internet.

First report of Her Majesty's Commissioners for Inquiring into the Housing of the Working Classes.

Erratum relating to p. 80 of v. 1 tipped in before p. [1] of v. 2.

Second report of Her Majesty's Commissioners for inquiring into the housing of the working classes.

Chairman: Sir Charles W. Dilke.

Religion in history and in modern life, together with an essay on the church and the working classes,

Mode of access: Internet.

Report on condition of the lower classes of population in Bengal.

Mode of access: Internet.

Musée rétrospectif des classes 53-54, pêche et cueillette, à l'exposition universelle internationale de 1900 à Paris. Rapport du comité d'installation.

Mode of access: Internet.

Leçons d'algèbre et d'analyse, à l'usage des élèves des classes de mathématiques spéciales,

Available on demand as hard copy or computer file from Cornell University Library.