Coat-of-arms of Sir Humphry Davy (1778-1829)   chemist,
knighted in 1812 & created a Baronet on Oct. 20, 1818 (extinct in 1829)

Sable, a chevron engrailed Erminois between two annulets in chief Or,  and in base a
flame Proper encompassed by a chain of the [last], issuing from a civic wreath Gold.

Humphry Davy was born in Penzance (Cornwall) on the 17th of December 1778.

He once joked that his greatest discovery was his assistant  Michael Faraday (1791-1867)  who eventually became a greater chemist and physicist than himself.

Armorial References:

• Harleian Society - Grantees of Arms (1687-1898) :
  DAVY, Sir Humphry, Bart., LL.D., F.R.S., ? Cornwall or London [Grosvenor
  Street, London, 1818 (Burke)], 181 . ., Vol. XXX, fol. 351. 
• Burke's General Armory  (BGA) :
  Davy (Grosvernor Street, London, bart., extinct; Sir HUMPHRY
  DAVY.  President of the Royal Society.  was so created 1818.
  d.s.p. 1829).   Sa. a chev. engr. erminois betw.two annulets
  in chief or, and in base a flame ppr. (commemorative of the
  invention of the safety lamp by Sir Humphry Davy),
  encompassed by a chain of the first, issuant from a civic
  wreath gold.  Crest--Out of a civic crest or, an elephant's
  head sa. ear gold, tusk ar. the proboscis attached by a
  line to a ducal coronet around the neck gold.  Motto--Igne
  constricto vita secura.

The above references were kindly provided by Stephen Plowman.
Some authors have [mistakenly?] listed the chevron as ermine instead of erminois.

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