"In this century," according to ecologist Paul R. Ehrlich, "no one has done more to promote an interest in living creatures than Roger Tory Peterson, the inventor of the modern field guide." Peterson's "Guide to the Birds" - "the first modern field guide" - was published in 1934. Its pioneering approach was to use visual characteristics rather than technical data to identify species. This was achieved by grouping similar species together on a plate, using clear, two-dimensional illustrations, and pointers to key field marks as well as succinct text, a combination known as the Peterson Identification System. That revolutionary style was later applied to a host of field guides covering anything from the night sky to moths and geology to mushrooms ... Read More:
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"In this century," according to ecologist Paul R. Ehrlich, "no one has done more to promote an interest in living creatures than Roger Tory Peterson, the inventor of the modern field guide." Peterson's "Guide to the Birds" - "the first modern field guide" - was published in 1934. Its pioneering approach was to use visual characteristics rather than technical data to identify species. This was achieved by grouping similar species together on a plate, using clear, two-dimensional illustrations, and pointers to key field marks as well as succinct text, a combination known as the Peterson Identification System. That revolutionary style was later applied to a host of field guides covering anything from the night sky to moths and geology to mushrooms ... Read More:
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"In this century," according to ecologist Paul R. Ehrlich, "no one has done more to promote an interest in living creatures than Roger Tory Peterson, the inventor of the modern field guide." Peterson's "Guide to the Birds" - "the first modern field guide" - was published in 1934. Its pioneering approach was to use visual characteristics rather than technical data to identify species. This was achieved by grouping similar species together on a plate, using clear, two-dimensional illustrations, and pointers to key field marks as well as succinct text, a combination known as the Peterson Identification System. That revolutionary style was later applied to a host of field guides covering anything from the night sky to moths and geology to mushrooms ... Read More:
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"In this century," according to ecologist Paul R. Ehrlich, "no one has done more to promote an interest in living creatures than Roger Tory Peterson, the inventor of the modern field guide." Peterson's "Guide to the Birds" - "the first modern field guide" - was published in 1934. Its pioneering approach was to use visual characteristics rather than technical data to identify species. This was achieved by grouping similar species together on a plate, using clear, two-dimensional illustrations, and pointers to key field marks as well as succinct text, a combination known as the Peterson Identification System. That revolutionary style was later applied to a host of field guides covering anything from the night sky to moths and geology to mushrooms ... Read More:
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"In this century," according to ecologist Paul R. Ehrlich, "no one has done more to promote an interest in living creatures than Roger Tory Peterson, the inventor of the modern field guide." Peterson's "Guide to the Birds" - "the first modern field guide" - was published in 1934. Its pioneering approach was to use visual characteristics rather than technical data to identify species. This was achieved by grouping similar species together on a plate, using clear, two-dimensional illustrations, and pointers to key field marks as well as succinct text, a combination known as the Peterson Identification System. That revolutionary style was later applied to a host of field guides covering anything from the night sky to moths and geology to mushrooms ... Read More:
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"In this century," according to ecologist Paul R. Ehrlich, "no one has done more to promote an interest in living creatures than Roger Tory Peterson, the inventor of the modern field guide." Peterson's "Guide to the Birds" - "the first modern field guide" - was published in 1934. Its pioneering approach was to use visual characteristics rather than technical data to identify species. This was achieved by grouping similar species together on a plate, using clear, two-dimensional illustrations, and pointers to key field marks as well as succinct text, a combination known as the Peterson Identification System. That revolutionary style was later applied to a host of field guides covering anything from the night sky to moths and geology to mushrooms ... Read More:
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"In this century," according to ecologist Paul R. Ehrlich, "no one has done more to promote an interest in living creatures than Roger Tory Peterson, the inventor of the modern field guide." Peterson's "Guide to the Birds" - "the first modern field guide" - was published in 1934. Its pioneering approach was to use visual characteristics rather than technical data to identify species. This was achieved by grouping similar species together on a plate, using clear, two-dimensional illustrations, and pointers to key field marks as well as succinct text, a combination known as the Peterson Identification System. That revolutionary style was later applied to a host of field guides covering anything from the night sky to moths and geology to mushrooms ... Read More:
>>More Details
"In this century," according to ecologist Paul R. Ehrlich, "no one has done more to promote an interest in living creatures than Roger Tory Peterson, the inventor of the modern field guide." Peterson's "Guide to the Birds" - "the first modern field guide" - was published in 1934. Its pioneering approach was to use visual characteristics rather than technical data to identify species. This was achieved by grouping similar species together on a plate, using clear, two-dimensional illustrations, and pointers to key field marks as well as succinct text, a combination known as the Peterson Identification System. That revolutionary style was later applied to a host of field guides covering anything from the night sky to moths and geology to mushrooms ... Read More:
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"In this century," according to ecologist Paul R. Ehrlich, "no one has done more to promote an interest in living creatures than Roger Tory Peterson, the inventor of the modern field guide." Peterson's "Guide to the Birds" - "the first modern field guide" - was published in 1934. Its pioneering approach was to use visual characteristics rather than technical data to identify species. This was achieved by grouping similar species together on a plate, using clear, two-dimensional illustrations, and pointers to key field marks as well as succinct text, a combination known as the Peterson Identification System. That revolutionary style was later applied to a host of field guides covering anything from the night sky to moths and geology to mushrooms ... Read More:
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"In this century," according to ecologist Paul R. Ehrlich, "no one has done more to promote an interest in living creatures than Roger Tory Peterson, the inventor of the modern field guide." Peterson's "Guide to the Birds" - "the first modern field guide" - was published in 1934. Its pioneering approach was to use visual characteristics rather than technical data to identify species. This was achieved by grouping similar species together on a plate, using clear, two-dimensional illustrations, and pointers to key field marks as well as succinct text, a combination known as the Peterson Identification System. That revolutionary style was later applied to a host of field guides covering anything from the night sky to moths and geology to mushrooms ... Read More:
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