Robert Brown FRS FLS 1773-1858 Botanist and Alumnus of this University Discoverer of the Nucleus of the Plant Cell and of Brownian Motion Erected in 2005, Einstein Year, to mark the link between the works of Robert Brown and Albert Einstein

Photo of Robert Brown yellow plaque
The Pingus on Flickr

Cruikshank Building, Chanonry, Aberdeen
Google Streetview

Colour: yellow

Wikimedia:

Flickr:

See also...
Photo of Joseph Banks, Robert Brown, David Don, and The Linnean Society stone plaque
Spudgun67 on Flickr