PREFACE. 



The Papers of whicli this little volume are composed need but little 

 by way of preface. They were written for the purpose of being read 

 at the Meetings of the Harrow School Scientific Society, and they led 

 in many cases to interesting discussions. They are published partly 

 because it is believed that they are capable of affording pleasure to a 

 wider circle of Harrovians, than that by which they have already been 

 favourably received ; but mainly because we desire to give some account 

 of our Society and its proceedings, to justify its existence, and to 

 awaken if possible a wide and active interest in the objects for which 

 it was founded. Those objects are sketched generally in the intro- 

 ductory address, and the volume itself will afford some indication of the 

 extent to which they have been accomplished. 



Ranging over many topics, from the habits of Titmice and the 

 functions of Stomata, to the Augasma Light and the physical constitu- 

 tion of the new star in Corona Borealis, we hope that all readers may 

 find in the following papers something to suit their tastes. To 



