CONTENTS.
| PAGE | ||
| [I.] | —Scientific Culture | 5 |
| [II.] | —The Nobility of Knowledge | 45 |
| [III.] | —The Elementary Teaching of Physical Science | 71 |
| [IV.] | —The Radiometer | 86 |
| [V.] | —Memoir of Thomas Graham | 127 |
| [VI.] | —Memoir of William Hallowes Miller | 145 |
| [VII.] | —William Barton Rogers | 160 |
| [VIII.] | —Jean-Baptiste-André Dumas | 181 |
| [IX.] | —The Greek Question | 203 |
| [X.] | —Further Remarks on the Greek Question | 214 |
| [XI.] | —Scientific Culture; its Spirit, its Aim, and its Methods | 227 |
| [XII.] | —"Noblesse Oblige" | 267 |
| [XIII.] | —The Spiritual Life | 289 |