VI CONTENTS. 



PAGE 



Night. Illustration of the Mirage. Ice a Conductor of 

 Sound. Sea Fights. Speaking Pipes. Well at Caris- 

 brook. Cast-iron Pipes at Paris. New Bell. Echo at 

 Girgenti. Sound Conveyed by Water. Along Wood, 

 Wire, &c. Ventriloquism. Sensibility of the Human 

 Ear. Ear of Dionysius. Statue of Memnon. Musical 

 Rocks. Scientific Knowledge of the Ancient Priests - 112 



CHAPTER VIII. 



ST. VINCENT DB PAUL. 



St. Vincent de Paul. Captivity at Tunis. Tutor to Cardi- 

 nal de Retz. Changes Places with a Galley Slave. 

 Soeurs de la Charite. President of the Council of Con- 

 science. Salpetriere. Sends supplies to Lorraine. En- 

 fans Trouves. His Death. Foundation of the Orphan 

 Asylum. St. Vincent is canonized by the Pope - - 127 



CHAPTER IX. 



THE SUGAR CANE. 



Hard and Soft Water. Sugar, History of. Ideas respecting 

 it. Introduced into the Colonies. Sugar Refining. Ali- 

 mentary Qualities. Body Guard of the King of Cochin 

 China. Hindoo Tradition. Species of Sugar Cane. 

 Manna. Early Rising. Anecdote of Frederick II. Eco- 

 nomy of Time. Destruction of Books by a Beetle - 18 



CHAPTER X. 



THE GARDEN. 



Arundo Donax, Pragmilcs, arenaria. Law against Destroy- 

 ing the Bent. Calamus. Quill Pens. Reed used by the 



