Trees have been gratifying us with their beauty and their benefactions for thousands of years. Their role in nature is of first importance.  Besides cleansing the air we breathe, refreshing us with their shade in summer, offering shelter and food to numerous animals, treating us with fruits, making our landscapes beautiful, trees offer a spectacle ceaselessly renewing itself in the course of the seasons embellishing our Springs and our Falls as well as providing us with the intimacy we all appreciate after a day of hard labour.