Recherche dans la collection - Preliminary Series Papers [cartographic material]

Soon after the GSC Summary reports were discontinued the need for a preliminary account of the work done each year by the GSC became apparent. The Paper Series with subsequent modification had been designed on the principle that quality of reproduction must give place to speed of production in order to supply provisional information until final, more complete, reports and loloured lithographed maps were printed.
Many final reports were subsequently published to replace a large number of Preliminary Series papers. (From Index of publications of the Geological Survey of Canada, (1845-1958), by A. G. Johnston. (1961)
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