142 Scientific Proceedings, Royal Dublin Society. 



calculated to dry 

 grass. 



In his report accompanying the analyses (Nos. 3, 4, 5, and 6, 

 were made in December last, and Nos. 7 and 8 in January and 

 February last), Mr. Arnott wrote as follows, viz. : " Sample No. 

 3, was seed stems grown on rocky clay soil; No. 4, was seed 

 stems grown on bog or peat ; No. 5 was leaves grown on bog ; No. 

 6 was a fair average of several bales of both stems and leaves, 

 received for large scale experiment." From these figures it is 

 manifest, 1st, that there is but little practical difference in the 

 amount of fibre contained in the clay and peat-grown samples, 

 not more than I would expect to find between any two samples 

 grown on the same soil. 2nd, The mineral matter, as was to be 

 expected, is more than double in the clay-grown sample as com- 

 pared with that grown on bog land ; but the per centage is not 

 great in either case, and the silica, although six times greater in 

 No. 3 than in No. 4, is still so low as really not to entitle it to 

 rank as a matter of importance. The leaves. No. 5, as is natural, 

 contain much less woody fibre than the stems. 



The fibre set down in the analyses is that portion of the cellu- 

 lose available for paper making, and as I have made my analyses 

 from a paper making point of view, I have been careful to report 

 only such cellulose as has been indurated, and capable of being 



