They had an embarrassment of riches before them, that they might rightly use their time and gratify every taste of all the party. First of all, Nathan led them to the Library, and while under his brother’s guidance, the young people looked at some of the curiosities there, he took John to the Bursar’s office, to attend to some business about his college room. Then they all called on a young gentleman, to whom the Dudleys introduced the Creheres, so that they saw the comfort of the college rooms of the students. Next they went to Memorial Hall, where are the portraits of the old worthies of the state and college, the trophies of many base ball victories, and, most interesting of all, if you go at a meal time, some five hundred of the young men of to-day, eating with a good appetite. From this place they went to the Agassiz Museum, which is so skilfully arranged that they will all date back to that hour’s visit a clearer knowledge of the great classifications of natural science. The young people declared that they were not tired even then. Their student friend had asked them to rest in his room after these bits of sight seeing, and they did so, and then, after a little lunch, went up to the Botanic Garden, stopped at the Observatory, and crossed to see the house which was lately the home of Longfellow, and in the Revolution, that of Washington. Travelers who have the same lions to “do” in one day may find their order a convenient one to follow. And, though these are not landmarks of Boston properly, it has seemed wise not to conclude their story without telling of their Cambridge expedition. “And now,” said Nathan, as they took at the door of the Longfellow house a car for Boston, “now we have made the beginning, when you come in the fall we can show you Boston.” VANISHING TYPES. By REV. EDWARD P. SPRAGUE. Abundant evidence is afforded in nature that, beside the familiar forms of life of the present, there have been earlier forms, such as are now no longer seen. Each great epoch of the earth’s history, as, to a less degree, each great continent on the earth’s surface, has had certain prevalent and characteristic types; of which some still endure; some have wholly disappeared, and some are just now passing out of sight. And among all these extinct, persistent, vanishing and recent types, there are perhaps none more full of interest, or more worthy of our careful study than the ones that are just now passing away.