phase of chemical science, and that he had never either heard of or seen Reichenbach's letter to Dumas, upon which the claims of the German chemist to have been the original discoverer of paraffin were based. It is now generally admitted that Reichenbach was the real discoverer of paraffin. He found it as an ingredient in the tar obtained by distilling beechwood, as far back as 1830. What Reichenbach only dreamed about and hoped for, however, Mr. Young practically realised; and to our townsman is due the credit of having been the first to prepare paraffin as a commercial article from mineral sources. The exact nature and properties of shale was the subject of a remarkable trial in the Court of Session soon after Mr. Young began to work the raw material at Bathgate. The proprietor of the estate of Torbanehill, Mr. Gillespie, disputed with the lessee, Mr. Russell, of Falkirk, affirming that the valuable mineral called shale was not _coal_, and that the working of it was therefore not included in Mr. Russell's lease. Subsequently, Mr. Young had several lawsuits against parties who had infringed his patent, one being an action against the Clydesdale Chemical Company, in which, the jury gave a unanimous verdict for Mr. Young, the defendants paying large sums as costs and damages. Another was an action against Mr. E. W. Ferney, of Saltney, near Chester, who had established works on Mr. Young's principle, and would not be bound by the decisions pronounced in previous cases. In the spring of 1864, after a trial which lasted nearly forty days, judgment was again given in favour of Mr. Young, who claimed L15,000 of professional expenses alone, in addition to a royalty of 3d. per gallon of oil made in contravention of his patent rights.