Studies in the Theory of Descent, Volume II (Registro nro. 88687)
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| fixed length control field | 02759cam a22003973u 4500 |
| 001 - CONTROL NUMBER | |
| control field | 47848 |
| 003 - CONTROL NUMBER IDENTIFIER | |
| control field | UtSlPG |
| 005 - DATE AND TIME OF LATEST TRANSACTION | |
| control field | 20260610134111.0 |
| 006 - FIXED-LENGTH DATA ELEMENTS--ADDITIONAL MATERIAL CHARACTERISTICS | |
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| 007 - PHYSICAL DESCRIPTION FIXED FIELD--GENERAL INFORMATION | |
| fixed length control field | cr n |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION | |
| fixed length control field | 260607r2015||||utu|||||o|||||||||||||| d |
| 040 ## - CATALOGING SOURCE | |
| Original cataloging agency | UtSlPG |
| 041 #7 - LANGUAGE CODE | |
| Language code of text/sound track or separate title | en |
| Source of code | iso639-1 |
| 050 #4 - LIBRARY OF CONGRESS CALL NUMBER | |
| Classification number | QH |
| -- | QL |
| 100 1# - MAIN ENTRY--PERSONAL NAME | |
| Personal name | Weismann, August, |
| Dates associated with a name | 1834-1914 |
| 245 10 - TITLE STATEMENT | |
| Title | Studies in the Theory of Descent, Volume II |
| 264 #1 - PRODUCTION, PUBLICATION, DISTRIBUTION, MANUFACTURE, AND COPYRIGHT NOTICE | |
| Place of production, publication, distribution, manufacture | Salt Lake City, UT : |
| Name of producer, publisher, distributor, manufacturer | Project Gutenberg, |
| Date of production, publication, distribution, manufacture, or copyright notice | 2015 |
| 300 ## - PHYSICAL DESCRIPTION | |
| Extent | 1 online resource : |
| Other physical details | multiple file formats |
| 336 ## - CONTENT TYPE | |
| Content type term | text |
| Content type code | txt |
| Source | rdacontent |
| 337 ## - MEDIA TYPE | |
| Media type term | computer |
| Media type code | c |
| Source | rdamedia |
| 338 ## - CARRIER TYPE | |
| Carrier type term | online resource |
| Carrier type code | cr |
| Source | rdacarrier |
| 500 ## - GENERAL NOTE | |
| General note | Release date is 2015-01-02 |
| 508 ## - CREATION/PRODUCTION CREDITS NOTE | |
| Creation/production credits note | Produced by Marilynda Fraser-Cunliffe, Charlie Howard, and<br/>the Online Distributed Proofreading Team at<br/>http://www.pgdp.net (This file was produced from images<br/>generously made available by The Internet Archive) |
| 520 ## - SUMMARY, ETC. | |
| Summary, etc. | "Studies in the Theory of Descent, Volume II" by August Weismann is a scientific publication written in the late 19th century. This work delves into the concepts of biological development, focusing particularly on the independence and variability of the different stages of metamorphosis in insects. Weismann explores the relationship between larva and imago, or the adult stage, presenting various cases that demonstrate how these stages can exhibit independent variations despite being part of the same organism. At the start of the volume, Weismann introduces the idea that the physical structure of the larva and its corresponding imago can vary independently of each other. He discusses how these variations can manifest differently across species and stages of development, addressing questions about the influences that cause such differences—whether they arise from inherent biological factors or external environmental conditions. Through examples from Lepidoptera, he argues that changes in one developmental stage do not necessarily affect the others, setting the foundation for a deeper investigation into the nature of organismal development and the mechanics of evolutionary change. This opening establishes a framework for understanding variability and adaptation in the context of evolutionary theory, aiming to link morphological changes with environmental interactions. (This is an automatically generated summary.) |
| 534 ## - ORIGINAL VERSION NOTE | |
| Note about original | Original publication data not identified |
| 653 ## - INDEX TERM--UNCONTROLLED | |
| Uncontrolled term | Insects |
| 653 ## - INDEX TERM--UNCONTROLLED | |
| Uncontrolled term | Heredity |
| 653 ## - INDEX TERM--UNCONTROLLED | |
| Uncontrolled term | Zoology |
| 653 ## - INDEX TERM--UNCONTROLLED | |
| Uncontrolled term | Butterflies |
| 653 ## - INDEX TERM--UNCONTROLLED | |
| Uncontrolled term | Lepidoptera |
| 653 ## - INDEX TERM--UNCONTROLLED | |
| Uncontrolled term | Insects -- Evolution |
| 653 ## - INDEX TERM--UNCONTROLLED | |
| Uncontrolled term | Mechanism (Philosophy) |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Darwin, Charles, |
| Dates associated with a name | 1809-1882 |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Meldola, Raphael, |
| Dates associated with a name | 1849-1915 |
| 856 40 - ELECTRONIC LOCATION AND ACCESS | |
| Uniform Resource Identifier | <a href="https://www.gutenberg.org/ebooks/47848">https://www.gutenberg.org/ebooks/47848</a> |
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