Referee's report by Hugo Muller, on two papers 'Experimental researches on vegetable assimilation and respiration.—No. I. On a new method for investigating the carbonic acid exchanges of plants' and 'Experimental researches on vegetable assimilation and respiration.—No. II. On the paths of gaseous exchange between aerial leaves and the atmosphere' by Frederick Frost Blackman Recommended for publication in the 'Philosophical Transactions of the Royal Society'. Suggests the paper could be shortened. The photographs are not clear and should be replaced with drawings. The scale should be standardised to metric, instead of a mixture of metric and imperial. Subject: Botany [Both papers published in the Philosophical Transactions of the Royal Society, 1895] 9 January 1895