PREFACE. 



THE increased demand for text-books in scientific German 

 has led to the annotating of the present work. 



Walther's Allgemcine Meereskunde, has been chosen, first, 

 because of the intrinsic value of the book, from a scien- 

 tific standpoint ; secondly, because of the interesting manner 

 in which the subject matter is presented, the work being, 

 by no means, a dry scientific treatise, but presenting the 

 subject in an attractive and popular form and abounding in 

 charming descriptions and beauties of style ; thirdly, because 

 it treats of so many different sciences (Botany, Zoology, Physi- 

 cal Geography, Chemistry, and Geology ) that the student, in 

 the one work, is made familiar with the technical terms of 

 many sciences. 



In annotating the book for class-room use, it has been 

 necessary to abridge it. The complete edition is published 

 by J. J. Weber, Leipzig. Having used the book, for three 

 years, in my classes, I have noted the difficulties of students 

 and have endeavored to adapt the notes and vocabulary to 

 their needs. In the preparation of the same, I have received 

 invaluable aid from the following professors of science in the 

 University of Wisconsin : Dr. E. A. Birge, Professor of Zool- 

 ogy, Dr. C. R. Van Hise, Professor of Geology, and Dr. 

 W. H. Hobbs, Assistant Professor of Mineralogy and Petrology. 



iii 



