517 



not formed by a regular groove, as the upper are, but have 

 all the characters of such scratches as would be formed on a 

 stone by sharpening knives or other edged tools. 



Fig. 4. 



Fig. 5 is of sandstone, rudely chiselled on the faces and 

 sides, and roughly rounded on the corners of the back, the 

 back itself being flat. It is two feet eight inches high ; eleven 

 inches and a-half at the broadest part, and about seven inches 

 thick. In shape it has a rude resemblance to the ordinary 

 form of a coffin. The letters are distinct grooves, but they 

 do not appear to be all of the same age, as some are very 

 evidently new or recent, and, as in Fig. 3, very similar to the 

 scratches formed by sharpening tools. 



The Cork Institution is indebted to the zeal of Messrs. 

 Windele and Abel for these valuable Ogham stones. 



Dr. Apjohn read a notice, by the Rev. Thomas Knox, on 

 Cyanogen, as a Food for Plants. 



