154 APPENDIX II 



XV. Read Kerner and Oliver, Volume I, Part 2, pp. 

 405 (bottom line)-407. 



XVI. Another view is frequently expressed ; for which 

 read Kerner and Oliver, Volume I, Part 2, p. 402. 



Read Gray, Text-book, p. 127. 



The latest writers disagree with Sachs, however, and con- 

 sider these spirals as secondary and the number of ranks 

 as greater than three. 



CHAPTER VIII 



BUDS 

 General Reading 



Kerner and Oliver, Volume II, Part i, pp. 25-45. 

 Gray, Text-book, pp. 40-45 ; Elements, pp. 27-32. 



MATERIAL, consisting of branches with buds, may be tied 

 up into bundles and dried. If placed in boiling water and 

 allowed to remain there until the water is cool, all the parts 

 will swell up to their normal size again and will serve the 

 same purposes as fresh material. 



V. The large-leaved Maple of California and the Red or 

 the Silver Maple of the East are excellent. 



VI. Material should be fresh or preserved in formalin. 

 Read Gray, Elements, p. 63, 166 (Buckeye); Text- 

 book, p. 116, 227 (Buckeye). 



The scales of large specimens of the Buckeye or of the 

 Red Currant may be carefully picked off, pressed, and the 

 series of transitions from scales to leaves pasted upon cards 

 and given to the students in that form. 



