United States. War Department, Dictionary of Spoken Russian — §4… (1945)
“ In the case of prepositions, which are written (but not pronounced) as separate words, the same habit obtains, but the writing does not show it: игра [igra] "game," с игрой [s igroy] "with the game": [i] here has its dull sound. ”
United States. War Department, Dictionary of Spoken Russian — §4… (1945)
“ In all other cases the inserted vowel is [jo] ; that is, [o] with softening of the preceding consonant were possible: котлы [katli] "kettles": котёл [katjol] "kettle" пепла [pjepla] "of ashes": пепел [pjepj'l] "ashes" смешно [smjišno] "it's funny": смешон [smjišon] "he's funny" страшно [strašna] "it's terrible": страшен [straš'n] "he's terrible" There are quite a few irregularities. Thus, beside во сне [va snje] "in one's sleep," there is сон [son] "sleep," with [o] inserted instead of [jo] . Some words, like блеск [bljesk] "sheen," do not insert a vowel. ”
