The second Willow or group of Willows you should learn about is the most difficult of all. In it there are many different varieties, and you would require to plant one of each kind in your garden, as a gentleman in England has done, and study them carefully for many years to discover the points wherein each Willow differs from the other. Though the Goat Willow or Sallow (1) sometimes grows into a tall tree, it is more often seen as a bush--a bush with a short, rough stem, which does not rise far above the ground, and which sends up many tall, slender branches, covered with smooth, purplish brown peel or skin. Early in March, before the snowdrops have withered, you will find the Goat Willow in every hedge and coppice bursting into scaly brown buds. It is one of our earliest trees, and after a few days of warm sunshine the brown scales unclose and the branches are dotted with the softest and silkiest little pussy buds (3), shaped like tiny eggs and covered with grey down. These buds grow alternately on the smooth stem with a small space between each bud. In a few days the baby buds have changed, and you may find two Willow bushes growing quite near each other on which the buds are very different. For those woolly buds are the flower catkins, and the Goat Willow bears two kinds of flowers, which do not grow on the same tree. The bees have found out that the Willow is in flower; you can hear a swarm of them buzzing in the leafless branches, and you wonder where there is any honey to be found. On one tree the soft grey downy buds have grown larger, and they are now golden yellow catkins (4). The whole bud is covered with dainty yellow-headed stamens, nestling in pairs among oval scales edged with silky down, and it is at the base of these yellow-headed stamens that the bee finds the sweet drops of honey juice. For many hundreds of years branches of the Goat Willow or Sallow have been carried in this country to church on Palm Sunday in remembrance of the branches of palm which the people strewed in front of Christ when He entered Jerusalem. Troops of boys and girls go into the country lanes and coppices to gather Willow-palms, which they sometimes pluck so roughly and carelessly that the tree remains broken and ruined for the rest of the year. These silky stamen catkins of the Goat Willow are one of the most welcome signs of the return of spring.