470 THE STORY OF PLANT LIFE 



course as that suggested by Dr. F. Cavers, in his ' Practical 

 Botany.' The student is referred to this work, and to 

 others such as Darwin and Acton's ' Physiology of Plants,' 

 where a number of more elaborate experiments are 

 described, also to MacDougal's ' Practical Text-Book of 

 Physiology,' Timiriazeff, 'The Life of a Plant,' Stevens, 

 'Plant Anatomy,' Ganong, 'The Living Plant,' Green's 

 ' Vegetable Physiology,' Haberlandt's * Physiology,' Bose's 

 ' Plant Response,' works by Clements. The works of Jost, 

 Pfeffer, Strasburger, Vines are perhaps too exhaustive at first 

 for the beginner. 



Dr. Clements's works deal with the special bearing of 

 physiology upon ecology, and may be studied when ad- 

 vanced work in the latter direction has been begun. 



In outlining the general requirements of physiological 

 work Dr. Cavers makes some useful preliminary suggestions. 

 Apparatus may be normal or standard apparatus specially 

 suited for fairly accurate results of a quantitative nature, 

 and supplied by Bausch and Lomb from Prof. Ganong's 

 designs (see his ' Plant Physiology '). Or adapted apparatus 

 may be used, and selected from the apparatus used in 

 chemistry and physics courses {vide catalogues of Messrs. 

 Baird and Tatlock, Messrs. Flatters and Garnett, Cambridge 

 Scientific Instrument Co., Messrs Leitz). Such apparatus 

 will give correct qualitative results. 



For elementary work suited to a nature study course 

 makeshift apparatus may be obtained for temporary 

 purposes, but this will only give roughly accurate results, 

 and delicate measurements or observations cannot be 

 thereby attempted. 



A list of general appliances and articles including tools, 

 scales, balance, drying oven, sand-bath, meat-juice press, 

 spectroscope, various chemical and physical apparatus, 

 miscellaneous botanical apparatus, reagents, and chemicals. 



