The New Encyclopædia BritannicaEncyclopædia Britannica, 1983 - Encyclopedias and dictionaries |
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Page 336
... successful steam plow was made in the 1860s , after which steam power was widely adopted , especially on large farms ( Figure 8 ) . Supplementary im- plements were produced about this time , including hay rakes , hay - loaders , and ...
... successful steam plow was made in the 1860s , after which steam power was widely adopted , especially on large farms ( Figure 8 ) . Supplementary im- plements were produced about this time , including hay rakes , hay - loaders , and ...
Page 354
... successful in control of screwworms and fruit flies , replacing chemicals in some areas . Chemical attractants , which lure insects into con- tact with small amounts of insecticide or a sterilant , also offer much promise . All aspects ...
... successful in control of screwworms and fruit flies , replacing chemicals in some areas . Chemical attractants , which lure insects into con- tact with small amounts of insecticide or a sterilant , also offer much promise . All aspects ...
Page 1021
... successful students ; many went on to distinguished careers in the technical and scientific services of government . Apprenticeship has extended to other Commonwealth countries . In Australia it is regulated by laws that vary from state ...
... successful students ; many went on to distinguished careers in the technical and scientific services of government . Apprenticeship has extended to other Commonwealth countries . In Australia it is regulated by laws that vary from state ...
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accelerator acid activity Adams administrative advertising Aeschylus aesthetic Africa agriculture animals appear become body called Central century changes contains continued cost countries crops cultural dance early East effect electrons elements engineering established example farm feet field figures flight followed function human important increase industry influence Italy Khoisan Knossos known Lake land languages later less living major materials means ment natural occur operations organization original patterns percent performance period plants play political population present production range region remains represented result River society sound South southern species structure style theory tion traditional United usually variety West Western widely