112 CLASS-BOOKS EMPLOYED IN THE DEl'AKTM. 



elementary instruction, in the manner jut described, of the 

 youngest boys. When they have advanced through this, the 

 " Continuation" of the same work has been taught from, in 

 which are explained the nature and use of the Thermometer, the 

 Expansibility of the Air, the Elastic Force of Steam, the nature 

 of a Vacuum, the Pressure of the Atmosphere, and the con- 

 struction of the Barometer. For higher classes of boys the 

 " Sequel" to the same work has been used, in which the Pump, 

 the Air-pump, the Steam Engine, the manufacture of Gas, the 

 Electrical Machine, the manufacture and refining of Sugar, 

 and many other subjects of great utility and interest, embra- 

 cing portions of the elements of many departments of science, 

 are described or narrated with great perspicuity, and in a 

 manner admirably adapted to the comprehension of the juve- 

 nile mind. In Chemistry, some of the Upper Classes have 

 been taught from Dr. Turner's " Elements" of that science; 

 and lower Classes from the " Conversations on Chemistry." 

 In Mineralogy and Geology, the " Outlines," of the late Mr. 

 William Phillips have been employed ; and a few lessons on 

 Crystallography have also been given, in part from that work, 

 and from the " Elementary Introduction to Mineralogy" by 

 the same author, in part from notes prepared by the Teacher, 

 and illustrated by a series of large models constructed by Mr. 

 Lark in. These works have been employed, in preference, to 

 a certain extent, to lessons drawn up or delivered extempora- 

 neously by the Teacher, partly on account of the time which 

 would necessarily have been occupied in preparing original 

 lessons on every subject ; and partly in order that the Parents 

 of the pupils might be made exactly acquainted with the means 

 of instruction adopted. It would not be difficult to raise valid 

 objections to this mode of proceeding, with respect to some 

 of the works enumerated above, but it appeared to the Con- 

 ductors of Hazelwood School, to be, upon the whole, the 

 most eligible course that could be pursued. Whatever seemed 

 defective or erroneous in the works thus employed, it has, of 

 course, been the endeavour of the Teacher, to supply, or to 

 correct. 



The mode of Class-Instruction by private, or rather, silent 

 study, has necessarily been limited to elder boys. The fol- 

 lowing works have been read in this manner: 



In General Physics, Dr. Arnott's " Elements of Physics," 

 some of the Treatises published by the Society for the Diffu- 

 sion of Useful Knowledge, the Sequel to Harry and Lucy, 

 Philosophy in Sport made Science in Earnest, and Mil. 

 ton's Epitome of Natural Philosophy : 



luChemistry, The Conversations on Chemistry, Mr.Brande's 



