Collieries of the North of England.--Fire-damp.--The dreadful explosion at Felling Colliery described.--Letters from the Bishop of Bristol to the Author.--A Society is established at Bishop-Wearmouth for preventing accidents in coal mines.--Various projects for ensuring the miner's safety.--The Reverend Dr. Gray, the present Bishop of Bristol, addresses a letter to Sir H. Davy, and invites his attention to the subject.--Sir H. Davy's reply.--Farther correspondence upon the possibility of devising means of security.--Sir H. Davy proposes four different kinds of lamp for the purpose.--The Safe-lamp--The Blowing-lamp--The Piston-lamp--The Charcoal-lamp.--His investigation of the properties of fire-damp leads to the discovery of a new principle of safety.--His views developed in a paper read before the Royal Society on the 9th of November 1815.--The first Safety-lamp.--Safety-tubes superseded by Safety-canals.--Flame Sieves.--Wire-gauze lamp.--The phenomenon of slow Combustion, and its curious application.--The invention of the Safety-lamp claimed by a Mr. Stephenson.--A deputation of Coal-owners wait upon Sir H. Davy, in order to express to him the thanks of the Proprietors for his discovery.--Mr. Buddle announces to Dr. Gray (now Bishop of Bristol) the intention of the Coal trade to present him with a service of plate.--The Resolutions are opposed, and the claims of Stephenson urged, by Mr. W. Brandling.--A dinner is given to Sir Humphry, at which the plate is presented to him.--The President and Council of the Royal Society protest against the claims still urged by Mr. Stephenson's friends.--Mr. Buddle's letter in answer to several queries submitted to him by the Author.--Davy's Researches on Flame.--He receives from the Royal Society the Rumford Medals.--Is created a Baronet.--Some observations on the apathy of the State in rewarding scientific merit.--The Geological Society of Cornwall receives the patronage and support of Sir Humphry. A few months after the return of Sir Humphry Davy to England, his talents were put in requisition to discover some remedy for an evil which had hitherto defied the skill of the best practical engineers and mechanics of the kingdom, and which continued to scatter misery and death amidst an important and laborious class of our countrymen.