Category: Biographies

Heroes of Science: Chemists

Introduction of accurate measurements into chemistry--Black's researches on alkalis and on fixed air--His conception of heat--Priestley's experiments on airs--His discovery of oxygen--Lavoisier, the founder of the science of chemistry--He clearly establishes a connection betwe...

Chapters

12. CHAPTER IV.

We may roughly date the period of chemical advance during which the connections between chemistry and other branches of natural knowledge were recognized and studied, as beginni...

10. CHAPTER II.

During this period of advance, which may be broadly stated as comprising the last half of the eighteenth century, the aim and scope of chemical science were clearly indicated by...

11. CHAPTER III.

The progress of chemical knowledge became so rapid in the early years of the present century, that although I have in this chapter called the time immediately succeeding that of...

14. CHAPTER VI.

I have as yet said almost nothing with regard to the progress of organic chemistry, considered as a special branch of the science. It is however in this department that the grea...

9. CHAPTER I.

Early chemistry was not a science. The ancient chemists dealt chiefly with what we should now call chemical manufactures; they made glass, cleaned leather, dyed cloth purple and...

15. CHAPTER VII.

On p. 162 I referred to the work of the German chemist Richter, by which the _equivalents_ of certain acids and bases were established. Those quantities of various acids which s...

13. CHAPTER V.

The work of Graham, concerned as it mostly was with the development of the conception of atoms, connects the time of Dalton with that in which we are now living. I have therefor...

16. CHAPTER VIII.

We have thus traced some of the main paths along which Chemistry has advanced since the day when, ceasing to be guided by the dreams of men who toiled with but a single idea in...

8. CHAPTER VIII.

As we trace the development of any branch of natural knowledge we find that there has been a gradual progress from vague and fanciful to accurate and definite views of Nature. W...

2. CHAPTER II.

Introduction of accurate measurements into chemistry--Black's researches on alkalis and on fixed air--His conception of heat--Priestley's experiments on airs--His discovery of o...

6. CHAPTER VI.

The barrier between inorganic and organic chemistry begins to be broken down--Wöhler prepares urea--Dumas opposes the dualistic system of Berzelius--Liebig's conception of compo...

3. CHAPTER III.

4. CHAPTER IV.

7. CHAPTER VII.

1. CHAPTER I.

5. CHAPTER V.