The Microtomist's Formulary and Guide

physiological variation between the early, middle, and late ripening apples was apparent. The deductions and reasoning from the experimental data by Blackman in an attempt to clarify the results make the book worthwhile even if one takes issue with his lack of a statistical basis for his conclusions. The work should, as a result, be entitled to a place in the classical researches into the complexities of plant respiration of its day.