With the onset of the Second World War it was open to the Survey to contribute to the war effort by producing a succession of memoirs comparable with Strahan's Special Reports on Mineral Resources that were begun during the First World War. However, as publications of that length would take a long time to publish and longer to print the Survey accepted an alternative based on an offer by the Stationery Office to produce a quick succession of multigraphed reports short, and with adequate illustrations. The resultant Wartime Pamphlets were numbered consecutively in Arabic numerals. They were often but not always issued in several separate parts and numbered with Roman numerals. Ninety-three out of a total of 107 parts came out during the War years. Just under half were on water, others ranged from limestones, refractories, iron ores, phosphates, feldspars, mica, sand and gravel, barytes, diatomite, glauconite, ochre, peat, slate, tin and a general one on mineral resources of the Lothians.