Collected works > Edinburgh edition, 1894-98 - Works of Robert Louis Stevenson > Volume 28, 1898 - Appendix
(32) Page 12
Download files
Complete book:
Individual page:
Thumbnail gallery: Grid view | List view
NEW FORM OF INTERMITTENT LIGHT
One advantage of the method that I propose is this, that
while we are able to produce a plain intermittent light; an
intermittent light of variable period, ranging from a brief
flash to a steady illumination of half the revolution ; and
finally, a light combining the immediate occultation of the
intermittent with combination and change of colour, we can
yet preserve comparative lightness in the revolving parts, and
consequent economy in the driving machinery. It must, how-
Fig. 5.
ever, be noticed, that none of these last methods are applicable
to cases where more than one radiant is employed : for these
cases, either my grandfathers or Mr. Wilson's contrivance
must be resorted to.
1871.
12
One advantage of the method that I propose is this, that
while we are able to produce a plain intermittent light; an
intermittent light of variable period, ranging from a brief
flash to a steady illumination of half the revolution ; and
finally, a light combining the immediate occultation of the
intermittent with combination and change of colour, we can
yet preserve comparative lightness in the revolving parts, and
consequent economy in the driving machinery. It must, how-
Fig. 5.
ever, be noticed, that none of these last methods are applicable
to cases where more than one radiant is employed : for these
cases, either my grandfathers or Mr. Wilson's contrivance
must be resorted to.
1871.
12
Set display mode to: Large image | Transcription
Images and transcriptions on this page, including medium image downloads, may be used under the Creative Commons Attribution 4.0 International Licence unless otherwise stated. 
| Early editions of Robert Louis Stevenson > Collected works > Works of Robert Louis Stevenson > Appendix > (32) Page 12 |
|---|
| Permanent URL | https://digital.nls.uk/99383696 |
|---|
| Description | Includes illustrated facsimiles of Moral emblems and tales and advertisements from Stevenson's childhood. Contents: Preface and bibliographical note [by Sidney Colvin]; The charity bazaar; The light-keeper; On a new form of intermittent light for lighthouses ; On the thermal influence of forests; Reflections and remarks on human life; The ideal house; Preface to The master of Ballantrae; Moral emblems, etc, : Facsimiles: Black canyon, or Wild adventures in the Far West; Not I, and other poems; Moral emblems; A martial elegy for some lead soldiers; The graver and the pen; Moral tales: Robin and Ben, or, The pirate and the apothecary; The builder's doom. |
|---|---|
| Shelfmark | Hall.275.b |
| Additional NLS resources: | |
| Attribution and copyright: |
|
More information
|
|
| Form / genre: |
Written and printed matter > Books |
|---|---|
| Dates / events: |
1898 [Date published] |
| Places: |
Europe >
United Kingdom >
Scotland >
Edinburgh >
Edinburgh
(inhabited place) [Place printed] |
| Subject / content: |
Essays Anthologies |
| Person / organisation: |
Colvin, Sidney, 1845-1927 [Author of introduction, etc.] |
| Description | Edinburgh edition. Edinburgh: Printed by T. and A. Constable for Longmans Green and Co, 1894-98. [28 volumes in total, only some of which NLS has digitised.] |
|---|---|
|
More information
|
|
| Form / genre: |
Written and printed matter > Books |
|---|---|
| Dates / events: |
1894-1898 [Date printed] |
| Places: |
Europe >
United Kingdom >
Scotland >
Edinburgh >
Edinburgh
(inhabited place) [Place printed] |
| Subject / content: |
Collected works |
| Person / organisation: |
Chatto & Windus (Firm) [Distributor] Stevenson, Robert Louis, 1850-1894 [Author] T. and A. Constable [Printer] Longmans, Green, and Co. [Publisher] Colvin, Sidney, 1845-1927 [Editor] |
| Description | Full text versions of early editions of works by Robert Louis Stevenson. Includes 'Kidnapped', 'The Master of Ballantrae' and other well-known novels, as well as 'Prince Otto', 'Dynamiter' and 'St Ives'. Also early British and American book editions, serialisations of novels in newspapers and literary magazines, and essays by Stevenson. |
|---|---|
|
More information
|
|
| Person / organisation: |
Stevenson, Robert Louis, 1850-1894 [Author] |
|---|
