470 Proceedings of the Royal Physieal Society. 



LIST OF EESEAECHES EEFEREED TO. 



N.B. — Abundant references to literature are to be found in 

 the appendix to Semper's ''Animal Life," 1880. The majority 

 of the researches cited below are of later date. 



The few sample researches on the environment of plants 

 may be supplemented by reference to Prof. Sachs' " Lectures 

 on the Physiology of Plants " (translated by Prof. Marshall 

 Ward), and to Prof. Vines' ''Lectures on the Physiology of 

 Plants" (1886), e.g., in the Bibliography to Lecture XYL, 

 pp. 414, 415. 



I. Molar or Mechanical. 



(1-3L) 



1. Amans (no init.). GeneraUtes sur les organes de locomotion 



aquatique. Comptes Rendus, cv. (1887), pp. 1035-37. 



Mechanical study of modes of aquatic locomotion, with em- 

 phasis on "the enormous influence of the resistance of 

 the water on the forms of the body and appendages." 



2. Balaschewa. De I'influence du milieu exterieur et prin- 



cipiellement celle des dimensions du bassin d'eau sur 

 quelques Moll usque. Mem. Soc. Nat. Nouv. Russ. 

 Odessa, xii., 1 (1887). 



3. Barfurth, D. Biologie der Forellen. Arch. mikr. Anat., 



xxvii. (1886), pp. 121-178, 2 pis. 



Temporary sterility of trout, in part due to want of suitable 

 depositing ground, was followed by degeneration of 

 hypertrophied organs, and permanent sterility, or pro- 

 duction of weak forms. 



4. . Yersuche iiber die Yerwandluno^ der Frosch- 



larven. Arch. mikr. Anat., xxix. (1887), pp. 1-34, 1 pi. 

 Quiet in water ; curtails tadpole metamorphosis. 



5. Behrens, W. JB. Nat. Ges. Elberfeld, 1880. Kosmos, vii. 



(1880), pp. 466-471. 

 Influence of currents on the forms of water-plants. 



6. Bert, Paul. La Pression barometrique. 1879. 



7. . Sur la richesse en hemoglobine du sang des 



animaux vivants sur les hauts lieux. Comptes 

 Rendus, xciv., pp. .805-807.. 

 Animals in relation to altitude. 



