Category: History - Modern (1750+)
SIMPLE AND COMPOUND MICROSCOPES--EVOLUTION OF THE MODERN ACHROMATIC MICROSCOPE--IMPROVEMENTS IN THE MODERN MICROSCOPE: THE ROSS-JACKSON, POWELL AND LEALAND, BECK’S, BAKER’S, PILLISCHER, ZEISS, LEITZ, WATSON’S, VAN HEURCK’S EDINBURGH STUDENTS’, SWIFT’S, AND BACTERIOLOGICAL 72
The time has long since passed by since the value of the microscope as an instrument of scientific research might have been called in question. By its aid the foundation of myco...
10. CHAPTER III.It is almost unnecessary to say that the eye-piece forms a most important part of applied optics in the microscope. It is an optical combination designed to bring the pencil of...
11. CHAPTER IV.In this chapter it will be my aim to discuss the best practical methods of employing the microscope and its appliances to the greatest advantage. First, the student should selec...
17. CHAPTER VI.The structure of rocks and the formation of crystals will be found to furnish an endless supply of instructive material for the microscope. In sciences of pure observation, as t...
14. CHAPTER III.A study of the earliest growth of the Cœlenterata has shown that their internal cavities are nothing more than regular radiate out-growths of the internal structures. The result...
8. CHAPTER I.The advances made in physics and mechanics during the 17th and 18th centuries fairly opened the way to the attainment of greater perfection in all optical instruments. This has...
9. CHAPTER II.Microscopes are known as simple and compound. The simple microscope may, for convenience, be divided into two classes; those used in the hand (hand magnifiers), and those provid...
15. CHAPTER IV._Distinctive Characters of Insects._--The term Insect, although originally and according to the meaning of the word correctly employed in a wide sense to embrace all those artic...
13. CHAPTER II.The consideration of the whole special group of organisms forming the subject matter of this chapter, under the heading of Protozoa, were formerly included among Infusoria, whic...
16. CHAPTER V.The most complicated condition in which matter exists is where, under the influence of life, it forms bodies with a structure of tubes and cavities in which fluids are incessant...
7. PART I.The instrument known as the Microscope derives its designation from two Greek words, μικρὸς (_mikros_), _small_, and σκοπέω (_skopeo_), _to see or observe_; and is an optical in...
6. CHAPTER VI.In this Plate _Fig._ 1 shows the elegant lattice-sphere of Rhizosphæra; _Fig._ 2 represents Sphærozoum, whose skeleton consists of loose spicules, arranged tangentially; Actinom...
2. CHAPTER II.SIMPLE AND COMPOUND MICROSCOPES--EVOLUTION OF THE MODERN ACHROMATIC MICROSCOPE--IMPROVEMENTS IN THE MODERN MICROSCOPE: THE ROSS-JACKSON, POWELL AND LEALAND, BECK’S, BAKER’S, PIL...
4. CHAPTER IV.PRACTICAL MICROSCOPY--MANIPULATION--MODE OF EMPLOYING THE MICROSCOPE--WORKING ACCESSORIES--METHODS OF PREPARING, HARDENING, STAINING, AND SECTION CUTTING--CUTTING HARD STRUCTURE...
5. CHAPTER I.MICROSCOPIC FORMS OF LIFE--THALLOPHYTES, PTERIDOPHYTA, PHANEROGAMÆ--STRUCTURE AND PROPERTIES OF THE CELL--PATHOGENIC FUNGI AND MOULDS--PARASITIC DISEASES OF PLANTS, MAN, AND ANI...
3. CHAPTER III.1. CHAPTER I.