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The Biodiversity Heritage Library improves research methodology by collaboratively making biodiversity literature openly available to the world as part of a global biodiversity community.
Please read BHL's [Acknowledgment of Harmful Content](https://about.biodiversitylibrary.org/about/harmful-content "harmful content")
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Full-text Catalog [](https://about.biodiversitylibrary.org/ufaqs/how-do-i-search-the-bhl-collection/)
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### New on the
#### BHL Blog
[BHL Technical Development: Year in Review](https://blog.biodiversitylibrary.org/2025/02/bhl-technical-development-year-in-review-2024.html)
Building a More Resilient BHL: Improving Accessibility and Expanding Global Reach What does it...
[BHL Newsletter (December 2024) Now Available!](https://blog.biodiversitylibrary.org/2024/12/bhl-newsletter-december-2024-now-available.html)
Our latest newsletter is now available! From collaborative transcription projects to a new...
[Biodiversity Heritage Library Datasets Now Openly Accessible on the Amazon Web Services Cloud](https://blog.biodiversitylibrary.org/2024/11/bhl-datasets-now-openly-accessible-on-aws-cloud.html)
Sixty-two million pages of scientific text, images, and metadata, representing 500 years of...
[View More Blog Posts](http://blog.biodiversitylibrary.org/)
### Today's Picks
#### Flickr Stream
* [](/page/28735046 "A flora of the state of New-York : - Plate [32]")
* [](/page/20306970 "The free-living unarmored dinoflagellata - Plate 6")
* [](/page/41131833 "Pomologie française - PRUNIER PL. 9")
* [](/page/34167049 "Entomologie ou Histoire naturelle des insectes - Plate I")
* [](/page/56757648 "Les lépidoptères de la Belgique - Illustration")
* [](/page/24839522 "Insect life - Plate XLVII")
* [](/page/16363486 "British conchology, or, An account of the Mollusca which now inhabit the British Isles and the surrounding seas - Plate III")
* [](/page/39689168 "Histoire physique, naturelle, et politique de Madagascar - Plate 150")
* [](/page/52145980 "An exposition of English insects - Tab. II")
* [](/page/39633285 "The Birds of Asia - Plate [66]")
* [](/page/28735046 "A flora of the state of New-York : - Plate [32]")
* [](/page/20306970 "The free-living unarmored dinoflagellata - Plate 6")
* [](/page/41131833 "Pomologie française - PRUNIER PL. 9")
* [](/page/34167049 "Entomologie ou Histoire naturelle des insectes - Plate I")
* [](/page/56757648 "Les lépidoptères de la Belgique - Illustration")
* [](/page/24839522 "Insect life - Plate XLVII")
* [](/page/16363486 "British conchology, or, An account of the Mollusca which now inhabit the British Isles and the surrounding seas - Plate III")
* [](/page/39689168 "Histoire physique, naturelle, et politique de Madagascar - Plate 150")
* [](/page/52145980 "An exposition of English insects - Tab. II")
* [](/page/39633285 "The Birds of Asia - Plate [66]")
* [](/page/28735046 "A flora of the state of New-York : - Plate [32]")
* [](/page/20306970 "The free-living unarmored dinoflagellata - Plate 6")
* [](/page/41131833 "Pomologie française - PRUNIER PL. 9")
* [](/page/34167049 "Entomologie ou Histoire naturelle des insectes - Plate I")
* [](/page/56757648 "Les lépidoptères de la Belgique - Illustration")
* [](/page/24839522 "Insect life - Plate XLVII")
* [](/page/16363486 "British conchology, or, An account of the Mollusca which now inhabit the British Isles and the surrounding seas - Plate III")
* [](/page/39689168 "Histoire physique, naturelle, et politique de Madagascar - Plate 150")
* [](/page/52145980 "An exposition of English insects - Tab. II")
* [](/page/39633285 "The Birds of Asia - Plate [66]")
[View More Images on Flickr](http://www.flickr.com/photos/biodivlibrary/sets/)
### Featured Content
#### Ukrainian Українська Collection
[](/collection/ukrainian "Ukrainian Українська Collection")[Explore](/collection/ukrainian "Ukrainian Українська Collection")