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POPULAR SCIENCE MONTHLY. 



to pass slowly through, shaded channels to the parched lands 

 beyond. It is indeed quite impossible to overestimate the value 



Fig. 1. Tulip Tree. 



of the billions and billions of leaves which work and build for 

 the benefit of humanity." 



M. Berthelot reports to the French Academy of Sciences that the sub- 

 scriptions for the proposed monument to Lavoisier, taken in France and 

 other countries, amount to 47,353 francs, or $9,410. Of this sum, $100 are 

 credited to the United States. The subscription is still open, and consider- 

 able sums are expected from particular sources, as the French Department 

 of Public Instruction and the city of Paris; and the Emperor of Russia has 

 headed a subscription list to be opened in his dominions. 



