Handwörterbuch der naturwissenschaften /

1

Carnegie Institution of Washington publication.

no. 174 (1912)

Handwörterbuch der naturwissenschaften /

2

Carnegie Institution of Washington publication.

no. 164 (1912)

Carnegie Institution of Washington publication.

no. 176 (1912)

The Ottawa naturalist.

v. 25 (1911-1912)

Handwörterbuch der naturwissenschaften /

9

Carnegie Institution of Washington publication.

no. 159, v. 2 (1912)

Carnegie Institution of Washington publication.

no. 152 (1912)

Carnegie Institution of Washington publication.

no. 170 (1912)

Handwörterbuch der naturwissenschaften /

10

Handwörterbuch der naturwissenschaften /

7

Carnegie Institution of Washington publication.

no. 167 (1912)

Bulletin de la Société linnéenne de Normandie.

ser. 6, v. 5 (1912)

Proceedings of the Academy of Natural Sciences of Philadelphia.

Index 1812-1912 (1913)