706 The American Naturalist. [August, 
The Senile Heart.”—In this small octavo of some three hundred 
pages, Dr. G. M. Balfour states the causes for the enlarged heart fre- 
quently found in adults past their prime, its symptoms, and the con- 
comitants and sequele. He then suggests a general mode of treatment 
for this widespread cardiac trouble followed by a chapter on the prog- 
nosis of special symptoms and the treatment with special reference to 
these symptoms. 
Marginal synopses of the points touched upon in the several para- 
graphs make the book a handy reference volume. 
Sixth Annual Report of the Missouri Botanical Gardens.” 
—This Report includes the following scientific papers: Revision of the 
North American species of Sagittaria and Lophotocarpus, Jared G. 
Smith ; Leitneria floridana, Wm. Trelease; Studies on the Dissemina- 
tion and Leaf Reflexion of Yucca aloifolia and other Species, H. J. 
Webber; Notes on new or little known Species, J. G. Smith ; Notes on 
the Mound Flora of Atchison Co., Missouri, B. F. Bush. 
All of these papers are well illustrated with page plates of excellent 
drawings. 
AMERICAN NATURALIST LIST OF RECENT BOOKS 
AND PAMPHLETS. 
ADAMS, G. [.—The Extinct Felide of North America. Extr. NA, Journ. 
Sci., Vol. I, 1896. From the author. 
ADLER, F.—The Monroe Doctrine and the War i in the United States. 
Ethical Addresses, Ser. III, No. 1, 1896. From the 
Acassiz, A.—The Elevated Reef of Florida, wey Notes on the Geology of 
Southern Florida by Leon S. Griswold. Extr. Bull. Mus. Comp. Zool. Harvard 
Coll., XXVIII, 1896. From the author. 
Bancs, O.—On a small collection of Mammals from Lake Edward, Quebec. 
a Proceeds. Biol. Soc. Wash., 1896. 
scom, F.—The Structures, Origin and Nomenclature of the Volcanic Rocks 
of ie Misiista. Reprint Journ, Geol., Vol. I, 1893. From the author. 
Baur, G.—Der Schädel einer neuen grossen Schildkröte (Adelochelys) aus 
dem Dasteginthens Museum in München. Aus. Anat. Anz., XII, Bd. 1896. 
From the author. 
Bauer, K.—Ein Fall von Verdoppelung der oberen Hohlvene und ein Fall 
von Einmündung des Sinus coronarius in den linken Vorhof. Jena, 1896. From 
the author. 
13 The Senile Heart. Its Symptoms, Sequels, and their Treatment. By G. W. 
Balfour, M. D. New York and London, 1894. Macmillan & Co. $1.50. 
“Sixth Annual Report of the Missouri Botanical Gardes. St. Louis, 1895. 
