Author
Hugo de Vries
1848-1935
Hugo de Vries (1848-1935) is a public-domain author available on Rivro. Read free books, explore subjects, and discover related classics.
Subjects
Books by Hugo de Vries
Species and Varieties, Their Origin by Mutation
"Species and Varieties, Their Origin by Mutation" by Hugo de Vries is a scientific publication written in the early 20th century. The book presents lectures focused on the theory of mutation as a key mechanism for the origin of species and varieties, challenging the slow change model proposed by Darwin and others. De Vries argues for sudden mutations that generate new species, suggesting that the processes underlying species formation can be experimentally investigated, particularly in agricultural and horticultural contexts. The opening of the work introduces the premise of mutation theory, highlighting how it diverges from traditional evolutionary thought. De Vries outlines his intention to demonstrate that new species and varieties arise suddenly, rather than through gradual changes, and he emphasizes the importance of empirical research and controlled experiments in this context. He also critiques the limitations of existing theories of descent, particularly Darwin's reliance on gradualism, by insisting that the experimental observation of mutative processes offers a more fruitful approach for understanding evolutionary biology. The author sets the stage for further explorations into specific examples, methodologies, and implications of his findings throughout the rest of the lectures.
Het Yellowstone-Park
"Het Yellowstone-Park" by Hugo de Vries is a scientific publication likely written in the late 19th century. This work provides a detailed exploration of Yellowstone National Park, focusing on its unique geological features, flora, and fauna, framed within the context of natural evolution and preservation. The book aims to articulate the beauty and significance of the park while advocating for its protection as a space of natural wonder beneficial to the public. The opening of the text establishes Yellowstone as an extraordinary natural location, celebrated for its geothermal features such as hot springs and geysers. De Vries discusses the geological history of the park, the unique climate, and the diverse ecosystems found within it. He notes how humans have taken measures to preserve this natural landscape, contrasting the awe-inspiring elements of the park with the often indifferent responses of visitors. The author also emphasizes the park's role as an oasis in a more arid region, offering insights into the surrounding wildlife and plant life, with rich detail that sets the stage for a deeper exploration of Yellowstone's unparalleled beauty and complexities.
De aardbeving van San Francisco De Aarde en haar Volken, 1907
"De aardbeving van San Francisco" by Prof. Dr. Hugo de Vries is a scientific publication likely written in the early 20th century. The work explores the catastrophic earthquake that struck San Francisco, delving into its causes, the resulting devastation, and the geological implications of the event. It examines the distinction between the immediate damage from the earthquake itself and the subsequent destruction caused by fires, as well as discussing the factors that contributed to the varying levels of damage across different building types and locations. The opening of the text vividly describes the aftermath of the earthquake, offering a detailed view of the ruins visible from a ferry crossing the bay. It outlines the direct impact of the tremors against the fires that ravaged the city, with specific attention to the structural integrity of different types of buildings. As the narrative progresses, it transitions into a more scientific analysis, detailing the geological factors that led to the earthquake and the subsequent scientific investigations initiated to study its effects. The author presents observations from a field trip along the fault line, emphasizing the intricacies of the geological shifts caused by the quake and their implications for future constructions. This analytical approach sets the stage for discussions on building practices that could mitigate damage in the event of future seismic activities.