117 



Here is the form adopted throughout the whole of the research. The spaces 

 have been reduced in the copy : — 



BOTANIC GARDENS, SYDNEY. 



Eucalyptus Seedlings. 



Species , 



Locality 



Number of Schedule 

 Date of Sowing 



Date of Examination of Seedling 



Hypocotyl 



Cotyledons 



Stem 



First Leaves 



First Alternate Leaves 

 Further Remarks _ 



The botanist of the future will ascertain to what extent there are differences 

 in seedlings as the result of extraneous circumstances, and will experiment on— 



1. Seed of varying ages. 



2. Seed from a vigorous or a debilitated tree. 



3. Seedlings subjected to varying treatment, e.g., richer or poorer, well or inferior- 



drained soil; crowded and. drawn up to the light, whether grown in the open 

 under severer conditions. 



One photograph of a seedling cannot show all the stages. In the beautiful 

 water-colour drawings to which I have made reference, several drawings of each have 

 usually been made, as a compromise. The botanists of the future, with adequate 

 endowments, will make very many more, and will even call in the aid of the cinemato- 

 graph. Unless there was a strong reason to the contrary, I have not raised a seedling 

 unless I had the corresponding botanical material to compare with that of the progeny. 



It is just as necessary to know the absolute origin of the seed from which a 

 seedling is raised as it is for the engineer or surveyor to know his base-line. I do not 

 say that all seeds of imperfectly ascertained origin are valueless, but they have the 

 defect that we have imperfect data concerning them, and therefore cannot answer 

 questions as to origin. And in an inquiry on phytogenetic lines, the correctness of our 

 data is especially important; 



