File:PSM V18 D029 The violle actinometer.jpg

Size of this preview: 456 × 600 pixels. Other resolution: 991 × 1,303 pixels.

Original file ‎(991 × 1,303 pixels, file size: 60 KB, MIME type: image/jpeg)

This file is from a shared repository and may be used by other projects. The description on its file description page there is shown below.

Wikipedia does not have a File page with this exact name.

Other reasons this message may be displayed:

If an image was recently created here, it may not be visible yet because of a delay in updating the database; wait a few minutes or try the purge function.
Titles on Wikipedia are case sensitive except for the first character; please check alternative capitalizations and consider adding a redirect here to the correct title.
If the page has been deleted, check the deletion log, and see Why was the page I created deleted?

File history

Click on a date/time to view the file as it appeared at that time.

	Date/Time	Thumbnail	Dimensions	User	Comment
current	20:48, 22 February 2014		991 × 1,303 (60 KB)	Ineuw	Improved image contrast

The following file is a duplicate of this file (more details):

The following page uses this file: