All posts by Grace Costantino

To all you chocolate lovers out there: one of the featured species on EOL this week was Theobroma cacao, better known as Cacao, from whence chocolate is created. So, in the spirit of collaboration, and with a desire to feature something as deliciously addictive as chocolate, we thought we’d pull some inspiration from this featured botanical delight and showcase Theobroma cacao in this week’s book of the week. So, check out To the River Plate and back : the narrative of a scientific mission to South America, with observations upon things seen and suggested (1913), by W.J. Holland.

The lure of Antarctica has been captivating humans for hundreds of years, centuries even before the discovery of such a landmass occurred. Discussions about the existence of such a place were proposed as early as the first century AD, when Ptolemy suggested that there must be a giant landmass to the south serving to counterbalance the mass of the giant northern lands (Europe, Asia and North Africa) and preserve symmetry in the world. Following such proclamations, maps constructed as early as the 1500s began portraying a giant continent in the mysterious southern reaches of the globe. However, while belief in the existence of this southern continent permeated antiquity, it was not until the 1800s that confirmation of such a place actually occurred.

The history of botanical taxonomic literature began in a textual format as far back as the 400s B.C. Such prestigious names as Hippocrates, the “father of medicine,” and Theophrastus of Eresius, the “father of botany,” are among those to have first written about botany. These early writings, however, lacked the illustrations which are so important to botanical (and all other forms of biodiversity, for that matter) identification. Even when illustrations entered the scene, they were rare and costly, as they had to be reproduced by hand. It was the introduction of the printing press that changed this situation, as this allowed woodcuts producing line illustrations to be inserted into botanical books.

Timothy Abbott Conrad (1803-1877) enjoyed a remarkable career, and, although he is best known as an American geologist, malacologist, and carcinologist, he began his professional career as a clerk in his father’s printing and publishing house. It was not until 1831, also the year in which Conrad was elected a member of the Academy of Natural Sciences, that he published his first volume, American Marine Conchology, or Descriptions and Colored Figures of the Shells of the Atlantic Coast (several plates from which are pictured here). Intending with this volume to “supply a deficiency which [had] long been felt by the cultivators of American natural history,” this volume contains seventeen plates, all illustrated by Conrad and hand colored by his sister, that depict the abundance and variation of the shells found along America’s coastline.

The dream of making biodiversity information freely available to people around the world is an ambitious goal embraced by many in the scientific community, and it represents the mission behind both the Biodiversity Heritage Library and the Encyclopedia of Life (www.eol.com), of which BHL is a cornerstone institution.

Taxonomic literature can be divided into Pre-Linnaean and Post-Linnaean literature, with Post-Linnaean literature being those works published after Carl Linnaeus developed his famous naming and classification schema, binomial nomenclature. This week’s book of the week, Historia Vermium, is an interesting example of a Pre-Linnaean text. The Smithsonian’s copy, pictured here, is one of only two copies in the Western Hemisphere, according to OCLC, and one of only twelve in the world. The author, Joachim Jung, was known chiefly as a mathematician and astronomer, being considered on par with the likes of Galileo. He also focused many of his studies on natural history, particularly in the realm of botany. Historia Vermium, like many of Jung’s works, was published posthumously.

For anyone who has seen the new BHL business cards, this week’s Book of the Week may look vaguely familiar. Several of the species images used on the cards (and indeed at the top of this webpage) were taken from plates found in the Report on the Zoological Collections Made During the Voyage of the H.M.S. ‘Alert.’