This work presents a new edition of two kāṇḍas ("books") of the Paippalādasaṃhitā, generally considered to be among the most important Vedic texts, yet still only partially available in published form. In so doing, it aims to provide a model for future first and new editions of other kāṇḍas. The edition constituted in this work is a new edition, that constitutes a major improvement on the editio princeps, including dozens of improved readings, providing a more methodical presentation of the transmitted manuscript evidence, and based on a more representative sample of manuscripts. General editorial deliberations are laid down in an elaborate Introduction, which explains and justifies the methodology that has been adopted; specific editorial problems are addressed in an elaborate philological commentary. All passages edited or cited in the commentary have been translated. The work is completed with a complete index verborum to the two edited kāṇḍas and an index locorum of Paippalādasaṃhitā passages cited in the commentary.