Luminous-Lint - for collectors and connoisseurs of fine photography
HOME  BACK>>> Subscriptions <<< | Testimonials | Login | FREE NEWSLETTER

Getting around

 

HomeContentsVisual IndexesOnline ExhibitionsPhotographersGalleries and DealersThemes
AbstractEroticaFashionLandscapeNaturePhotojournalismPhotomontagePictorialismPortraitScientificStill lifeStreetWar
CalendarsTimelinesTechniquesLibrarySupport 
 

HomeContents > People > Photographers > Henri de Lacaze-Duthiers

Dates:  1821, 15 May - 1901, 21 July
Born:  France, Lot-et-Garonne, Montpezat
Active:  France
 
  
A world authority on mollusks who carried out research on the light-sensitive properties of Murex Brandaris. If the sea-snail is broken open it can reveal a yellow slime that changes in sunlight to Tyrian Purple (dibromo-indigo) - a natual photo-sensitive extract. Henri de Lacaze-Duthiers used Purpura Lapillus in 1859 to make contact prints that were fixed by washing.
 
His obituary in the Year-book of the Royal Society -1902, (London: Harrison and Sons), p. 246 stated:
During a visit to Minorca, in 1858, he noticed an "ignorant fisherman" marking his clothes with the "purple of the ancients." This event led to the publication of the scholarly Memoire sur la Pourpre (1859), in which, by the citation of classical authorities and in other ways, he established the fact that the purple was probably that which is produced in certain species of Murex and Purpura, by what is now known as the hypobranchial gland ; and showed that the secretion of the gland acquires its final colour by exposure to the sunlight. A summary of this work appeared in vol. x. of the Proceedings of this Society.

Preparing biographies

Further research

 
 Premium content for those who want to understand photography
 
References are available for subscribers.There is so much more to explore when you subscribe. 
Subscriptions 
 
Thumbnail
Unidentified photographer
Henri de Lacaze-Duthiers 
1890s
 
  
Family history 
  
If you are related to this photographer and interested in tracking down your extended family we can place a note here for you to help. It is free and you would be amazed who gets in touch. 
  
alan@luminous-lint.com
 
  
 
  

Visual indexes

 
 Premium content for those who want to understand photography
 
Visual indexes for this photographer are available for subscribers.There is so much more to explore when you subscribe. 
Subscriptions 
 

Internet biographies

Terms and Conditions

 
Wikipedia has a biography of this photographer.Show on this siteGo to website
 
  
 
  
 
  
HOME  BACK>>> Subscriptions <<< | Testimonials | Login | FREE NEWSLETTER
 Facebook LuminousLint 
 Twitter @LuminousLint