280 The Oceanographical Museum at Monaco 



which his work is fundamental. Thus, in the purely hydro- 

 graphical department, we see his bathymetrical chart of the 

 world, on which all the trustworthy deep soundings are entered. 

 Tliis great document may be said to be the foundation-stone 



Fig. 2. Statue of Prince Albert I cr of Monaco in the Museum. 



of oceanographical work. Another and much earlier piece of 

 hydrographical work is the current chart of the North Atlantic, 

 which gives the result of his laborious work on board the schooner 

 " Hirondelle." By the methodical dispersion of floats, especially 

 constructed to expose the least possible surface above water, 



