CONTENTS. 



Frontispiece Apparatus used for making Marine and 



INTRODUCTION. 

 CHAPTER I. 



Structure and Life History of Diatoms 



i. Structure 



2. Movement 



3. Multiplication and Reproduction 



Study of Diatoms . 



Workroom 



Artificial Illumination 



Instruments Microscope 



,, Accessory Appjratus . 



Drawing and Determining Species 



Collecting Diatoms 



Collecting inland 



Marine and Pelagic Collections 



Collecting from Fossil Deposits 

 Marine Deposits 



,, Guano Deposits 



,, Lacustrine Deposits . 



Cultivation of Diatoms 



Ordinary Cultivation of Fresh Water Diatoms 

 Artificial Cultivation of Marine Diatoms 

 Pure Cultivation of Diatoms 

 Mr. C. Houghton Gill's Cultivations 

 Results of Experiments with Cultivations 



Teratology of Diatoms 



Preparation of Diatoms 



Prof. H. L. Smith's Method 



Mr. Fredk. Kitton's Method 



Mr. J. Kinker's Method . 



Prof. Brun's Method 



Preparation with Styrax and Liquidambar 



Preparations in very Refractive Liquids 



CHAPTER II. 



Terminology and Classification of Diatoms 



Frustule 



Valves 



Raphe and Nodules 



Endochrome 



Table of the Pfitzer Petit Classification 



Classification adopted in this Work . 



Of Genus and Species 



Pelagic Gatherings. 



Page 



1 



1 



9 

 13 



24 



24 

 24 



25 

 28 



28 



29 



29 



39 

 42 

 42 

 42 



43 



43 

 46 



47 

 48 



5 



5 2 



55 

 65 

 67 

 71 

 73 

 74 

 76 



77 



83 



83 

 84 

 92 



94 

 95 

 97 

 98 



39544 



