Viii SUGGESTIONS TO TEACHERS. 



should be carefully and neatly filled up from notes 

 previously arranged, and adjusted in every word and 

 sentence, so that there may be no erasures and no 

 interlining, and the Record may represent in every 

 particular the pupil's best work. Blank forms should 

 be drawn on the blackboard at every recitation, and 

 pupils be required to complete them, subject to the 

 criticism of the teacher and of the class as to analysis, 

 expression, style, spelling, punctuation, etc. 



A microscope is essential to botanical work. Small 

 hand-magnifiers for the use of the pupils and a larger 

 table-instrument for the teacher, can be procured of 

 the publishers of this book, Messrs. A. S. Barnes & 

 Co., Ill and 113 William St., New York. The Flora 

 Atlantica, or Wood's Descriptive Flora, is the proper 

 sequel or companion of this treatise. By means of an 

 elaborate system of analytical tables, the student, with 

 a plant in hand, is unerringly guided to its name, 

 classification and history. For this interesting work 

 he is thoroughly prepared by the lessons in this 

 treatise. For collecting specimens and drying them 

 for the herbarium, there are required, (i) a tin box or 

 trunk shutting closely ; (2) a drying press of woven 

 wire and bibulous paper; (3) a knife-trowel. They 

 may be obtained of the publishers above mentioned. 

 A system of questions for study or review, generally 

 applicable to all plants, will be found in the Appendix. 

 It is recommended that an herbarium including, at 

 least, all the species described in this work, be pro- 

 vided for use in class exercises in the absence of any 

 fresh specimen. 



