Auerbach, on fertilization, [355].
Bacteria, in dead Cockchafer, [46].
Baer, von, [194];
on the influence of maternal impressions on the offspring, [445].
Balanus, polar bodies of, [218].
Balbiani, on nuclear division, [187];
on pole-cells, [197];
on origin of ova, [222].
Balfour, on impregnation, [175];