| 21 | |
| 22 | |
| Language: | English |
| 23 | |
| 24 | Petrology of coals from Eastern bokaro coalfield, Hazaribagh district, Bihar |
| Language: | English |
| 25 | |
| 26 | |
| Language: | English |
| 27 | |
| 28 | |
| Language: | English |
| 29 | Study of rocks occurring around Karwar, North Kanara District |
| 30 | |
| Language: | English |
| 31 | |
| 32 | |
| Language: | English |
| 33 | |
| 34 | Petrology of a part of the Eastern Rajmahal traps with special reference to the secondary minerals |
| Language: | English |
| 35 | Petrology and petrogenesis of nephelinesenites and associated rocks of Koraput, Orissa |
| 36 | |
| Language: | English |
| 37 | Petrology and structure of the deccan trap flows of pavaradh hill, Gujarat India |
| 38 | Petrological and structural study of devi dhura area, District Almora, Uttar Pradesh |
| Language: | English |
| 39 | Petrology, fabric analysis and origin of the talchir boulder bed in the damodar valley coalfields |
| 40 | |
| Language: | English |