BOOKS - POPULAR SCIENCE - Век железа. Библиотека „В помощь школьнику". Серия по естес...
US $6.84
601779
601779
Век железа. Библиотека „В помощь школьнику". Серия по естествознанию
Year: 1926
Number of pages: 112
Format: DJVU | PDF
File size: 10 MB
Number of pages: 112
Format: DJVU | PDF
File size: 10 MB
The Scientific and Pedagogical Section of the State Academic Council allowed for schools of the first level. 'We'd come back from excursions and walk past the forge. Two blacksmiths worked there. Hammers banging stopped us. I wanted to see the work, but it was too late, so the teacher offered to inspect the forge another time. The next day we got acquainted with iron...
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