A drawing of the Marshall microscope used for observation of the blood circulation,with a fish lying on the specimen stage. The absence of a mirror to deflect illumination was a major design fault of this instrument | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Burgess, Dr. Jeremy |
Taille de l’image : | 3691 px × 5132 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |