Progress report.

Period covered by reports for 19 -20/21 ends Mar. 31; for 1921- Dec. 31.

Moon's Bee world, a monthly periodical devoted to bee culture.

Mode of access: Internet.

The illustrated stock doctor and live-stock encyclopædia, including horses, cattle, sheep, swine and poultry ... facts concerning the various breeds ... and general care, and all diseases to which they are subject, the causes, how to know, and what to do.

First edition published in 1880.

Bienenbuch für anfänger,

Mode of access: Internet.

Langstroth on the hive & honey bee.

Second, third and fourth edition have title: A practical treatise on the hive and honey-bee.

Methoden sinnesphysiologischer und psychologischer untersuchungen an bienen.

Reprint from Handbuch der biologischen arbeits-methoden ...

La Tunisie apicole,

Mode of access: Internet.

The beekeeper's vade-mecum,

Mode of access: Internet.

Der praktische imker. Lehrbuch der rationellen bienenzucht auf beweglichen und unbeweglichen waben

Mode of access: Internet.

Betriebsweisen lohnender bienenzucht.

Mode of access: Internet.

Langstroth on the hive & honey-bee.

Second, third and fourth editions have title: A practical treatise on the hive and honey-bee.

Die gallmilben (Eriophyiden) u. ihre beziehungen zur bienenwirtschaft ...

Mode of access: Internet.

Un nuovo velo per apicoltori.

At head of title: Dino Scaffai.

Der brasilianische bienenzüchter. Ein lehrbuch für die gesamte bienenzucht Brasiliens.

Mode of access: Internet.

Everyday essentials of beekeeping,

Mode of access: Internet.