In the Sierras, both in the _sequoia_ groves and forests above the Big-Tree region, are very large sugar-pines, red firs, and yellow-pine trees, all of which make excellent lumber. Great forests of these trees, with cedars almost as large as the redwoods, are in the northern counties also. You may have seen sugar-pine cones which are over a foot long, the largest of all found, while redwood cones are the smallest. Another great tree is the Douglas spruce, the king of spruce trees, growing in both Sierra Nevada and Coast ranges. The California laurel, or bay tree, with its beautiful, shining green leaves, and the madroño, the slender, red-barked tree on the hillsides you must have noticed in your trips to the country, as well as our fine valley and mountain oaks. Try to learn the kinds of trees and study their leaves, blossoms, and fruit, and you will find every one a friend well worth knowing. Then you will wish to save them from fire and the lumberman's axe, especially the rare and old _sequoias_. OUR BIRDS More than three hundred kinds of these dear feathered friends and visitors live in California. Along the sea-shore, in the great valleys and the mountain-forests and meadows, even in the dry, hot desert, the birds, our shy and merry neighbors, are at home. In many parts of the state they find sunshine and green trees the year round, and food always at hand. Yet sparrows, robins, and woodpeckers will stay in the snowed-in groves of the Sierras all winter, contentedly chirping or singing in spite of the bitter cold. If you know these wanderers of wood and field, these birds of sea and shore, and their interesting habits, you will wish to protect them from stone or gun, and their nests from the egg collector. You will listen to the lark and linnet, and be glad that the happy songster trilling such sweet notes is free to fly where he wishes, and is not pining in a cage. And you, little girl, will not encourage the destruction of these pretty creatures by wearing a sea-gull or part of some dead bird on your hat. To become better acquainted with birds, let us call them before us by classes, beginning with our sea-birds and those round the bays and on the coast. Some of these not only swim but dive in the salt waters, and to this class of divers belong the grebe, loon, murre, and puffin. They dive at the flash of a gun, and after what seems a long time, come up far away from the spot the hunter aimed at. These birds usually nest on bare, rocky cliffs near the ocean, or on islands like the Farallones, and their large green eggs hatch out nestlings that are ugly and awkward and helpless on land. But they ride the great ocean-breakers, or dive into their clear depths easily and gracefully; and as they live upon fish or small sea-creatures, the divers only seek land to roost at night and to raise their young.