[23] “Religion is the conception by man of his relation to the infinite universe and its source; and morality is the ever present guide of life proceeding only from this relation.” Tolstoi.

[24] Fiske.

[25] Society also utterly ignores the rights of unborn children in permitting the constant marriages of men and women having constitutions tainted with hereditary diseases, as insanity, syphilis, tuberculosis, etc.

[26] In Dipnoi, which are fishes with Amphibian characters, the paired fins have each a central segmented axis which bears on each side a series of radial pieces. The air bladder is a true lung, and is frequently used as such. The heart shows indications of becoming three chambered (two auricles and one ventricle). The left auricle contains arterial blood from the lungs. There is an inferior vena cava. The nasal sacs open posteriorly into the mouth.

INDEX.

Important Biological Publications

THE PRIMARY FACTORS OF ORGANIC EVOLUTION. By Prof. E. D. Cope. Cuts, 121. Pp., xvi, 547. Cloth, $2.00 (10s.).

DARWIN AND AFTER DARWIN. An Exposition of the Darwinian Theory and a Discussion of Post-Darwinian Questions. By George John Romanes, LL. D., F. R. S., etc.