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Based on H.D. Pratt and K.S. Littig , Ticks of Public Health Importance and their ... probably is the most important species in the suborder Mesostigmata ...
M ( some nonfeeders ) , feeding primarily on blood of vertebrates ( except fish ) ; many members economically important as disease carriers ; cosmopolitan ...
Limestone is important because of its use in the cement industry . Deposits are fairly widespread . North Africa is a particularly important source .
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This is the 198215th Edition, in two halves, with the Macropaedia and the Micropaedia. First published in 1768, the publisher is the oldest English-language encyclopedia still in print. Two Scottish ... Read full review