Geological reconnaissance of a portion of Algoma and Thunder bay districts, Ontario,

Appendices: I. Notes on some fossils from the Cambro-Silurian and Silurian rocks of the Albany river drainage system in northwestern Ontario, by J. F. Whiteaves.--II. Lists of insects, by J. F. Fletcher.

Reconnaissance of Noatak National Preserve and biosphere reserve as a potential site for inclusion in the integrated global background monitoring network /

"June 1986."

Soil survey of the Modesto-Turlock area, California, with a brief report on a reconnaissance soil survey of the region east of the area,

Mode of access: Internet.

Nouvelle flore, pour la détermination facile des plantes sans mots techniques, avec 2145 figures inédites, représentant toutes les espèces vasculaires des environs de Paris, dans un rayon de 100 kilomètres des départements de l'Eure, de l'Eure-et-Loir, etc. et des plantes communes dans l'intérieur de la France /

Mode of access: Internet.