This volume is part of the definitive edition of letters written by and to Charles Darwin, the most celebrated naturalist of the nineteenth century. Notes and appendixes put these fascinating and wide-ranging letters in context, making the letters accessible to both scholars and general readers. Darwin depended on correspondence to collect data from all over the world, and to discuss his emerging ideas with scientific colleagues, many of whom he never met in person. The letters are published chronologically: Volume 21 includes letters from 1873, the year in which Darwin received responses to his work on human and animal expression. Also in this year, Darwin continued his work on carnivorous plants and plant movement, finding unexpected similarities between the plant and animal kingdoms, raised a subscription for his friend Thomas Henry Huxley, and decided to employ a scientific secretary for the first time - his son Francis.

• We started tracking this book on October 3, 2014.
• This book was $92.80 when we started tracking it.
• The price of this book has changed 44 times in the past 3,484 days.
• The current price of this book is $132.05 last checked one day ago.
• This lowest price this book has been offered at in the past 90 days is $104.49.
• This lowest price this book has been offered at in the past year is $92.67.
• The lowest price to date was $69.99 last reached on June 3, 2016.
• This book has been $69.99 one time since we started tracking it.
• The highest price to date was $132.05 last reached on April 12, 2024.
• This book has been $132.05 4 times since we started tracking it.
• This book is currently at its highest price since we started tracking it.

• Literature & Fiction

• Text-to-Speech: Disabled
• Lending: Disabled
• File Size: 6,682 KB