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calcPageSize())" class="absolute inset-0 object-contain object-center w-full m-auto max-h-screen-75 cursor-pointer" :class="{ 'cursor-pointer': !fullscreen }" width="700" height="700" :loading="active!==index ? 'lazy' : 'eager'" :src="fullscreen ? image.full : image.img" x-show.transition.opacity.duration.500ms="active===index" alt="Inside pages about Tierra del Fuego, with text on the left page and a black and white sketch on the right. The sketch is of animals and people up a mountain and is titled A pass in the cordilleras." title="Inside pages about Tierra del Fuego, with text on the left page and a black and white sketch on the right. The sketch is of animals and people up a mountain and is titled A pass in the cordilleras." loading="lazy" src="https://www.nhmshop.co.uk/media/catalog/product/cache/dbb8d9894e400e5fbfae5c9a0ac6e419/9/7/9780565095772_1000x1000_the_voyage_of_the_beagle_2.jpg" style="display: none;">
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calcPageSize())" class="absolute inset-0 object-contain object-center w-full m-auto max-h-screen-75 cursor-pointer" :class="{ 'cursor-pointer': !fullscreen }" width="700" height="700" :loading="active!==index ? 'lazy' : 'eager'" :src="fullscreen ? image.full : image.img" x-show.transition.opacity.duration.500ms="active===index" alt="The hard front cover of the book is navy blue, with an ornate inlay design that frames the yellow text which says The Voyage of the Beagle, Charles Darwin." title="The hard front cover of the book is navy blue, with an ornate inlay design that frames the yellow text which says The Voyage of the Beagle, Charles Darwin." loading="eager" src="https://www.nhmshop.co.uk/media/catalog/product/cache/dbb8d9894e400e5fbfae5c9a0ac6e419/9/7/9780565095772_1000x1000_the_voyage_of_the_beagle_1_1.jpg">
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calcPageSize())" class="absolute inset-0 object-contain object-center w-full m-auto max-h-screen-75 cursor-pointer" :class="{ 'cursor-pointer': !fullscreen }" width="700" height="700" :loading="active!==index ? 'lazy' : 'eager'" :src="fullscreen ? image.full : image.img" x-show.transition.opacity.duration.500ms="active===index" alt="A colour map of the world from the book showing a red line with arrows on it. The map is called 'The world on the mercator's projection by William Shawe FRGS'." title="A colour map of the world from the book showing a red line with arrows on it. The map is called 'The world on the mercator's projection by William Shawe FRGS'." loading="lazy" src="https://www.nhmshop.co.uk/media/catalog/product/cache/dbb8d9894e400e5fbfae5c9a0ac6e419/9/7/9780565095772_1000x1000_the_voyage_of_the_beagle_5.jpg" style="display: none;">
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calcPageSize())" class="absolute inset-0 object-contain object-center w-full m-auto max-h-screen-75 cursor-pointer" :class="{ 'cursor-pointer': !fullscreen }" width="700" height="700" :loading="active!==index ? 'lazy' : 'eager'" :src="fullscreen ? image.full : image.img" x-show.transition.opacity.duration.500ms="active===index" alt="The book is styled standing upright on another copy of the book, which is lying flat so you can only see its spine. Behind them is a stack of unnamed brown, antique-looking prop-books." title="The book is styled standing upright on another copy of the book, which is lying flat so you can only see its spine. Behind them is a stack of unnamed brown, antique-looking prop-books." loading="lazy" src="https://www.nhmshop.co.uk/media/catalog/product/cache/dbb8d9894e400e5fbfae5c9a0ac6e419/9/7/9780565095772_1000x1000_the_voyage_of_the_beagle_3_1.jpg" style="display: none;">
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calcPageSize())" class="absolute inset-0 object-contain object-center w-full m-auto max-h-screen-75 cursor-pointer" :class="{ 'cursor-pointer': !fullscreen }" width="700" height="700" :loading="active!==index ? 'lazy' : 'eager'" :src="fullscreen ? image.full : image.img" x-show.transition.opacity.duration.500ms="active===index" alt="An overhead shot of three copies of the book lying flat on a wooden surface. The middle copy shows the front cover, the left is opened to show the world map and the right shows a map of South America." title="An overhead shot of three copies of the book lying flat on a wooden surface. The middle copy shows the front cover, the left is opened to show the world map and the right shows a map of South America." loading="lazy" src="https://www.nhmshop.co.uk/media/catalog/product/cache/dbb8d9894e400e5fbfae5c9a0ac6e419/9/7/9780565095772_1000x1000_the_voyage_of_the_beagle_4.jpg" style="display: none;">