Notes . 
558 
to give them interest in . it ; but the botanist, whether he made his 
rambles at home or abroad, was always sure of making new acquain- 
tances in the vegetable kingdom or recognizing dearly-beloved old 
acquaintances. Therefore, from these various points of view, he 
ventured to express the earnest hope that botany would always be 
taught to the medical students of Glasgow University. Lord Lister 
concluded by proposing a vote of thanks to Sir Joseph Hooker for 
his address. 
Professor Bayley Balfour seconded the motion. As a former Pro- 
fessor of Botany in this University, one who never dreamed of or aspired 
to these splendid halls for teaching botany, he warmly congratulated 
Professor Bower 013 having the energy, perseverance, and persuasive- 
ness by which he had managed to secure so magnificent an equip- 
ment. It was most fitting that these halls should have been, opened 
by one whose teaching had dominated botanical science for the past 
half-century, whose investigations had ranged over every field of 
botanical work, and whose influence upon the scientific thought of 
this country as a co-worker with Darwin was altogether immeasurable. 
Allusion had been made to the long connexion of the Hookers with 
Glasgow University. It was remarkable that a connexion, first formed 
so long ago as 1820, should at the beginning of this hew century be 
strengthened by the opening of these halls by Sir Joseph Hooker. 
Under the imprimatur of no higher name in the world of science 
could Professor Bower enter on the work he had to do in these halls. 
The proceedings then terminated. 
SIMPLE APPARATUS FOR THE MEASUREMENT OF 
TRANSPIRATION FROM A SHOOT.— This modification of 
a well-known apparatus for the demonstration of transpiration from 
a shoot will be found useful in a laboratory, as it admits of a series 
of quantitative measurements in a short time and is easy to set up and 
adjust. 
The bottle A is provided with a good rubber stopper pierced with 
three holes, one about 12 mm. in diameter, the other two about 
5 mm. each; through one of the smaller holes the shoot is pushed, 
the other carries the gauge £, made of capillary tubing about 60 cm. 
long. Through the third larger hole passes a rod of wood terminating 
in a knob C ; this serves to adjust the water to the zero position in 
