13(5 On Machines in General. 



consequence to the pleasure of the gentleman, as well as to 

 the profit of the gardener. 



Old as I am, 1 certainly intend this year to commence 

 experiments on the myrlle and the laurel : I trust, therefore, 

 it will not be thought presumptuous in me to invite those of 

 my brethren of this most useful Society, who are younger 

 than I am, and who of course will see the effect of more ge- 

 nerations than 1 shall do, to take measures for bringing to 

 the test of experiment the theory I have ventured to bring 

 forward, I hope not withniu some prospect of success. 



The settlement lately made at New Holland gives a large 

 scope to these experiments: many plants have been brought 

 from thence which endure our climate with very little pro- 

 tection J and some of these arrive at puberty at an early pe- 

 riod ; we have already three from the south point of Van 

 Diemen's Island, where the climate cannot be wholly with- 

 out frost ; mimosa verticillata, eucalyptus hirsuta, and ob- 

 liqua. The first of these appears to have produced flowers 

 within eight years of its first introduction ; but as a settle- 

 ment is now made very near the spot where the seeds of 

 these shrubs were collected, we may reasonably hope to re- 

 ceive further supplies, and, among them, the Wmterana 

 aroma'ica, an inhabitant of the inhospitable shore of Terra 

 del Fueso, which Mr. Brown has discovered on the scut]} 

 part of Van Diemen's Island also. 



XXVII. Essay 2ipon Machines in General. By M. Carnot, 

 Member of the French Institute^ &c. ^c. 



[Continued from p. 56.] 



Part II. 10/ Machines properly so called*.'] 

 Definitions. 



XXXI. XA-MONG the forces applied to a machine in mo- 

 tion, some are of such a nature that each of them forms 

 an acute angle with the velocity of the point at which it is 



* Vide p. 36 of the present volume. 



applied. 



