98 



eastern Canada. We have records of specimens from Labrador, 

 eastern Quebec, Newfoundland, New Brunswick, Maine, New 

 Hampshire, and Vermont. 



New York Botanical Garden. 



DEMONSTRATION OF PROTOPLASMIC MOTION. 

 Arthur P. Kelley 



Demonstration of protoplasmic motion is customary in classes 

 in biology and elementary physiology. Satisfactory material 

 however is not always to be found. 



Living amoebae well show streaming motion of naked proto- 

 plasm but amoeba may not be available when desired. Elodea 

 leaf-cells show evident rotation, large chloroplasts aiding the stu- 

 dent to trace the motion. But active motion is often found in the 

 middle of the leaf where underlying cell walls confuse the student 

 as to the true course of the motion. Or, we may use Trianea 

 root-hairs for protoplasmic circulation, but Trianea seems dif- 

 jficult to grow in city water. Staminal hairs of Tradescantia are 

 of course available only when the plant blooms. 



In our elementary classes we have found a dependable and 

 satisfactory object for demonstration in the pollen tubes of 

 Vinca rosea L. V. rosea oculata is equally useful. The plant 

 grows readily from cuttings, requires no special conditions and 

 only ordinary care which may be given in a small greenhouse. 

 It is in bloom constantly; one is always sure of securing pollen. 

 This pollen is germinated in a hanging drop of io% sugar solu- 

 tion. Usually within two hours tubes long enough for study are 

 formed; active streaming motion is readily seen within the thin 

 pollen tube wall. 



Rutgers University. 



NOTE ON FAGUS ANTIPOFII 



T. D. A. COCKERELL 



Having just acquired a copy of the work by H. Abich, Beitrage 

 zur Palaontologie des Asiatischen Russlands (1858), I have been 



