The only mahapurana which is missing from the above list is the Bhavishya Purana. You now have a pretty good idea of how long the Puranas are. The Skaknda Purana is the longest and the Kurma and Garuda Puranas the shortest. But unfortunately, the numbers in the Agni Purana are not terribly accurate. The Padma Purana has fifty-five thousand couplets and not twelve as stated. The Varaha Purana has twenty-four thousands couplets and not fourteen thousand. The Agni Purana itself has slightly over fifteen thousand couplets land not twelve thousand. But at least you have some approximate idea about the lengths of the various Puranas.

The Brahama Purana is to be given in the month of Vaishakha. The Padma Purana is to be donated in the month of Jyaishtha. The Vishnu Purana is to be donated in the month of Ashada and the Vayu Purana in the month of Shravana. The Bhagavata Purana is to be given in the month of Bhadra, the Narada Purana in the month of Ashvina, the Markandeya Purana in the month of Kartika, the Agni Purana in the month of Margashirsha and the Bhavishya Purana in the month of Pousha. The Brahmavaivarta Purana in the month of Pousha. The Brahmavaivarta Purana is for the month of Magha, the Linga Purana for the month of Falguna and the Varaha Purana for the month of Chaitra.

The Skanda Purana is to be given to brahmanas. The Vamana Purana is to be given in the autumn. The Kurma Purana is to be given together with a golden urn. The Matsya Purana is to be donated together with a golden swan. The Brahmanda Purana is to be given to brahmanas.

Great benefits are also to be derived from hearing the Puranas recited. The reciter has to be given alms and the brahmanas must be given cows, rice and land at the time of the recitation. If one arranges for a recitation of the Puranas, one lives long, stays healthy and attains heaven.

Dynasties

Brahma was born from Vishnu’s navel. Brahma’s son was Marichi, Marichi’s son Kashyapa and Kakshyapa’s son Vivasvana. From this line was descended Pururava and Pururava’s descendants were the kings of the surya (solar) dynasty.

Brahma also had a son named Atri and Atri had a son named Soma. Soma performed a rajasuya yajna (royal sacrifice). Having performed the sacrifice, Soma became the ruler of all the worlds. This made him very arrogant and he abducted the sage Brihaspati’s wife Tara. This led to a terrible war between the devas and the asuras. Tara was eventually restored to Brihaspati, but Soma and Tara had a son named Budha. From Budha were descended the kings of the chandra (lunar) dynasty.

There were twelve major wars between the devas and the asuras. The first of these was known as the Narasimha War. This took place when Hiranyakashipu was the king of the asuras. Vishnu adopted the form of Narsismha and killed Hiranyakashipu. He then made Prahlada the king of the demons. The second war was the Vamana war and it took place when Vali was the king of the demons. Vishnu adopted the form of a dwarf (vamana) to subjugate the demons. The third war was the Varaha war and this took place when Hiranyaksha was the king of the demons. Vishnu adopted the form of a wild boar (varaha) and killed Hiranyaksha. The fourth war was the Amritamanthana war and this took place over the manthana (churning) of the ocean for amrita (nectar).

The fifth war between the devas and the asuras took place over the abduction of Tara and this came to be known as the Tarakamaya war. The sixth war was known as the Ajivaka War. The seventh war took place when Tripura led the asuras and this was known as the Tripuraghatana war. It was Shiva who killed the demon Tripura in this war. The eighth war, the Andhaka war, took place when Andhaka led the asuras. It was Vishnu who engineered that Andhaka be killed when Andhaka expressed a desire to abduct Shiva’s wife.

The ninth war was known as Vritrasamhara and took place when Vritra led the demons. The tenth war was simply known as Jita. In this war, Vishnu killed Shalva and the other demons, and Parashurama killed the evil kshatriyas. The eleventh war was known as Halahala. An asura named Halahala (poison) had invaded Shiva’s body and flooded it with poison. But Vishnu managed to destroy the demon. In the twelfth war, known as Kolahala, Vishnu destroyed an asura named Kolahala (tumult).

Medicine

Dhanvantari was the physician of the gods and he taught Sushruta the art of ayurveda (medicine). The Agni Purana now describes what the sage Ssushruta had learnt, that is, the treatment for various diseases. This does not simply mean the treatment of human illnesses. There is a section known as vriksha ayurveda, which describes what trees are to be planted where. It describes how a garden is to be constructed and maintained.

The chapters on medicine also describe the treatment of elephants, horses and cattle. The mantras (incantations) which are the remedy for snake poison are also related.