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I’m Bonnie Felts, and I am a library technician for Smithsonian Libraries at the Natural History Museum. What most people don’t realize about our museum is that we have a total of 11 separate library locations, and I work with five of the collections. I am primarily responsible for the Vertebrate Paleontology library, which requires fielding reference questions, purchasing materials pertinent to the collection, and the overall care of the materials. Although in numbers, the library is relatively small compared to other libraries in our building, it is one of the most comprehensive Vertebrate Paleontology literature collections in the world.

Halloween is just around the corner, and the skeletons have come out of the closet. From front yards reimagined as graveyards to bone-chilling retail displays and party backdrops rattling with more than a few spare ribs, bones are on display to awaken the Halloween spirit and set a ghoulish mood to the delight of trick-or-treaters everywhere.

The modern-day Halloween is derived from the ancient Celtic festival of Samhain. With the Celtic new year celebrated on November 1, October 31 marked the end of summer and the harvest and the beginning of the cold, dark winter. Samhain, celebrated the evening of October 31, was believed to be a time when the boundary between the worlds of life and death were blurred, allowing the ghosts of the dead to return (History.com 2019).

Over time, Halloween has evolved into the costume-wearing, trick-or-treating holiday that it is today, but the season’s association with death has remained, evidenced by the proliferation of ghosts and skeletons intertwined with modern-day celebrations.

Embracing the Halloween season’s bony obsession, this month’s book of the month is one devoted to the skeleton — Osteographia (1733), which has been described as “one of the most important and beautiful books in the British anatomical tradition” (Neher 2010, 517). This work is freely available in BHL thanks to the Library and Archives of the Natural History Museum in London.

It is bird week from the 21st -27th of October. During this week, we would like to share with you some of the wonderful rare reference books on Australian birds and the stories behind them. These books have been digitised by the Biodiversity Heritage Library and are freely available in open access. The scientific reference works showcased this week include books from 1781 through to 1931. Ornithologists used these books to describe new species found within Australia and added to the growing number of previously undescribed birds during this time.

I study sloths, and as popular as they have become on the internet, the thing most people do not realize is that we are living in a world majorly deprived of most types of sloth. Today there are only two types of sloths: two-fingered (genus Choloepus) and three-fingered (genus Bradypus). (You may have heard them referred to a two-toed and three-toed, but they both have three digits on their hind limb, so the difference is on the forelimb, in other words, their hand, hence: fingers.) There are only a few species of each kind of sloth and they all live in the trees of tropical rainforests in Central and South America.

But back in prehistoric times, there were many types of sloths: more than 80 genera across five different families. They lived as far north as the Yukon Territory and Alaska, as far south as Patagonia, and stretched from coast to coast in the United States and even colonized islands throughout the Caribbean. The smallest of these fossil sloths were still bigger than any sloth alive today, and the biggest extinct sloths were the size of modern elephants (but could probably walk around on two legs like an awkward bear). All this means there is a lot to learn about the sloths that are no longer with us.

Recently, we spent three weeks on student placement at Museums Victoria Library and were fortunate enough to be involved with the digitisation of the beautiful title The birds of Norfolk & Lord Howe Islands and the Australasian South Polar quadrant by Gregory M. Mathews. It was an eye-opening experience, making us aware of the patience and attention to detail that is a necessity for book digitisation.

On the BHL blog, we often focus on the extensive biodiversity information made available through BHL and the innovative ways scientists are using the vast quantities of historical biodiversity data in BHL to conduct contemporary research. BHL is also useful for a range of non-scientific research, however, and is used by researchers in the arts and humanities as well as the sciences. Artists draw on the illustrations for inspiration, while humanities scholars use the digitised collections for historical research.

For librarians and book historians, BHL contains a wealth of provenance information, as well as the material to conduct comparative research. As a librarian in charge of a rare book collection specialising in natural history, I often use BHL to check if our copy of an item is complete, bound in the usual manner, or coloured in the same way as other copies.

The Biodiversity Heritage Library (BHL) is replete with publications which have had a seminal influence on their field. A highly-credentialed member of this category is John H. Day’s A Monograph on the Polychaeta of Southern Africa, published in 1967 in two volumes by the (then) British Museum (Natural History) in London. It is timely to celebrate this book now: on 24 August 2019 the author John Day would have had his 110^th birthday. And, as of this month, the author’s own copy of the book has been digitised for the BHL.