Journal and proceedings of the Royal Society of New South Wales . Fig. 5. Ash from Bromo crater, Java, x 70 diam., active volcano. Fig. 6. Sahara Desert Sand, x 300 dUrn. JOURNfiL ROYAL SOCIETY, , 1888. n»f 23. Part 11.

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Keywords: ., bookcentury1800, bookdecade1860, booksubjectscience, bookyear1867