Text-book of the embryology of invertebrates / by E. Korschelt, K. Heider.

  • Korschelt, E. (Eugen), 1858-1946. Lehrbuch der vergleichenden Entwicklungsgeschichte der wirbellosen Thiere. English
Date:
1895-1900
Catalogue details

Licence: In copyright

Credit: Text-book of the embryology of invertebrates / by E. Korschelt, K. Heider. Source: Wellcome Collection.

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    TRANSLATORS’ PREFACE The value of the Lehrbuch der vergleichenden Entwicklungs- geschichte der iclrbellosen Thiere for students of animal morphology is too well understood by those who are familiär with its scope and execution to require any statemenfc of our aims in underfcaking an English translafcion of it. In presenting to zoologists the First Part of this work we consider ourselves fortunate m ha\ r g had the valuable aid of the authors in supplemehting the original text by numerous additions, made desirable by the rapid advance of the Science since the date of first publication. Although the scope of the work has permitted the addition of only the most succinct Statement of the results reached by embryo- logists in the last five years, these additions must prove to be of assistance to all students, and will, we believe, be especially acceptable to those who are already familiär with the original edition. In oi*der to spare the reader the labor of comparing original and translation for the purpose of ascertaining what is new, the plan has been adopted of enclosing in brackets [ ] all new matter, which, so far as practicable, has been put in the form of footnotes. Each of these addi- tions is followed by the initial of the author, or by the word “ Translators,” to indicate the persous responsible for the new matter. Owing to an oversight, the initial has been omitted from several of the additions in the earlier chapters. It should be stated, therefore, that, unless otherwise indicated, the additions to Chapters I.—III. were made by Professor Heider, those to Chapters IV.—XIV. by Professor Korschelt. Brackets have also been freely used in the text to enclose such words or brief explanations as the translators deemed