vi PREFACE. 



instruction, it is believed this book will offer a suitable 

 introduction to extended botanical study ; but it has been 

 prepared especially for pupils who end their school educa- 

 tion when, or even before, the ordinary high-school course 

 is completed. It is confidently hoped also that those out- 

 side of schools who are desirous of learning something of 

 Botany will find here an attractive introduction to this 

 important science, for the further study of which the works 

 of Gray, Bessey, and others are so admirably adapted. 



In Part I. the subject of Structural Botany or Organ- 

 ography is presented in the customary form, yet a slight 

 abridgment of the number of technical terms and the 

 etymologies of the important ones given will, it is believed, 

 be found improvements. 



The numerous figures in Part 11. will enable the pupils, 

 even without the aid of microscopical appliances, to get a 

 clear idea of the minute structure or histology of plants, 

 upon which, to a large extent, physiology is based. 



In Part III. the arrangement of the various groups of 

 plants corresponds quite closely to that in recent publica- 

 tions by eminent botanists. Departures made by Bessey 

 in his Botany seem desirable, and, therefore, have been 

 followed. Only a limited number of representative groups 

 have been mentioned; and should the teacher find this 

 number too great for mastery on the part of his pupils, a 

 further abridgment can readily be made. 



In Part IV. only a few, yet in general the most 



