Show pearls and rubles pearls may be found nearly dearly anywhere in waters inhabited by oysters or mussels some of Canad canadas ts areah water pearls have a fairly high vahle the mississippi has also yielded valuable pearls rubles have usually come front from the east indis india or ceylon though south america has furnished somo some good oil wells are really excavations excavation i into underlying lakee or fields of petroleum goner ally found on athla continent just juat aboto cis trenon Ume itono formation |