In consequence of the growth of the botanical and zoological departments of the University, an addition to the Agassiz Museum has become a matter of imperative necessity. Thanks to the vigorous efforts of Professor Goodale, the sum of $50,000 has already been subscribed towards the $75,000 which is needed to pay for the new building. Plans have been prepared for an additional section of the great museum to give increased accommodation to the departments of geology and geography. Another section will include the botanical laboratories and a botanical museum, the materials for which have been accumulating for several years. These two buildings will form the central part of the front of the projected University Museum, of which the Museum of Comparative Zoology now forms the northern wing, while the Peabody Museum stands at the eastern extremity of the southern wing. Another large lecture room will also be provided, and proper consideration for the feelings of the students certainly demands that it be placed a few flights lower down than Professor Shaler's present lecture room.