Ni︠e︡kotoryi︠a︡ nabli︠u︡denia iz zhizni Beggiatoa
Language: rus
Notes: French summary, p. 5: Quelques observations sur la vie des Beggiatoa.

From Izvi︠e︡stii Imperatorskago SPB. bot. sada.

No. 7 in vol. with binder's title: Elenkin, II.