VOL. XLI.J PHILOSOPHICAL TRANSACTIONS. 483 



But, what is vastly surprising, notwithstanding all the past methods and medi- 

 cines, 1 very large chancres now appeared on the glans penis, and a very con- 

 siderable bubo in the left groin. A troublesome cough soon also seized him, 

 with shortness of breath ; and be began to expectorate a purulent, and some- 

 times bloody kind of matter. As the whole membrana adiposa without, had 

 been consumed by the disease, it was now falling on that part of it that invested 

 the more vital parts. But nature could support no longer. He died in the ex- 

 Iremest degree of a pocky consumption. But not one single bone of any part 

 of his body appeared to be touched, though he died with near 40 ulcers upon 

 him. 



An Account of Coal-balls made at Liege. By William Hanbury, Esq. F. R. S. 



N° 460, p. 672. 



This method of making coal-balls, has been much used at Liege, as also 

 sometimes in England and other parts. The way is, to collect the small dust of 

 pit coals, which would otherwise be useless or thrown away among the ashes, 

 &c. and temperate it up with water and some smooth fat clay, working it up 

 into balls or bricks, or pieces of any size and shape.* After being dried, 

 these burn easily and pleasantly, making a fire that is strong, clear, and very 

 durable. 



The proportion of the two ingredients is various, from ^ of coal and 4. of 

 clay, to the reverse, or -j- of coal and -»- of clay, according to their different na- 

 tures; or most usually the medium proportion between those, viz. half and half, 

 or an equal quantity of each. 



A short Account of Dr. Alexander Stuart's Paper concerning the Muscular 

 Structure of the Heart : which was read at several Meetings of the R. S. in 

 May and June 1735. By Cromwell Mortimer, M. D. Sec. R. S. N° 460, 

 p. 675. 



Dr. Mortimer premises that the sketch exhibited in this paper of Dr. Stuart's 

 discoveries is drawn from memory, he not having any of the Doctor's papers by 



• Probably the above practice gave rise to the present modern way of making bricks, now com- 

 monly used about London, &c. ; which is, to mix with the clay, or brick earth, a large portion, 

 about a 4th, of the fine dust sifted out of the common refuse of fires, coal ashes, which usually con- 

 tains a considerable portion of the small fine coal, which runs through the grate among the ashes. 

 This fine dust intimately incorporated through the brick, not only helps it to burn readily and 

 thoroughly, but also gives it on the outside a pleasant grey colour, which would otlierwise naturally 

 be a deep red. 



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