Quiet, reticent, and unassuming, it was given to but few to know the great-hearted, unselfish sweetness of nature underlying his whole life. Yet the scientific world in general and Nature students especially, recognize in Dr. Kellerman's death a loss long to be regretted and not soon to be repaired.
The foregoing "Introduction" from his pen was one of the latest, if not the last of his public writings, done but a few weeks before being stricken with the fatal fever which fell upon him in the forests of Guatemala, and so quickly ended his earthly hopes and aspirations.
It seems doubly sad that one so well and widely known in his life should be called upon to lay its burdens and its pleasures down while so far away from all who knew and loved him well; and to rest at last among strangers in a strange land.
To this beloved friend and companion of so many pleasant days in woods and fields the author of this book desires to pay the tribute of a loving remembrance and heartfelt appreciation.
"Various as beauteous, Nature, is thy face; * * * all that grows, has grace. All are appropriate. Bog and moss and fen Are only poor to undiscerning men. Here may the nice and curious eye explore How Nature's hand adorns the ruby moor; Beauties are these that from the view retire, But will repay th' attention they require."
Botany and geology have been favorite studies of the author since leaving college, thanks to Dr. Nelson, who lives in the hearts of all his students. He, by his teachings, made these subjects so attractive and interesting that by one, at least, every spare moment has been given to following up the studies of botany and paleontology. But the mycological part of botany was brought practically to the author's attention by the Bohemian children at Salem, Ohio, at the same time arousing a desire to know the scientific side of the subject and thus to be able to help the many who were seeking a personal knowledge of these interesting plants.
Every teacher should be able to open the doors of Nature to his pupils that they may see her varied handiwork, and, as far as possible, assist in removing the mist from their eyes that they may see clearly the beauties of meadow, wood or hillside.