Does there exist a reliable, reasonably up-to-date historical-comparative grammar of Sanskrit written in English? Failing that, what are the standard works for historical Sanskrit phonology and morphology in other European languages?
You guys never learn to use the Interet Archive. Re: Kobayashi: Go to https://archive.org/ and in the Wayback Machine frame enter http://www.gengo.l.u-tokyo.ac.jp/~masatok/hpiac_2004.pdf, then you receive the list of IA copies, https://web.archive.org/web/*/http://www.gengo.l.u-tokyo.ac.jp/~masatok/hpiac_2004.pdf. On the attempt to donwload, you'll see that the archive copy dated 2020 appears red, which means the original file was no longer available during the attempt to archive it, but if you target the 2016 copy(copies) on the timeline, you'll be moved to https://web.archive.org/web/20160815000000*/http://www.gengo.l.u-tokyo.ac.jp/~masatok/hpiac_2004.pdf, and you'll see this one is marked blue, which means it is ok. Go there (move your mouse to the blue dot located on August 3 and then click on the blue link with the archive hour in a small pop-up window), and you'll get it. Bingo! Re: Burrow: The third edition is available at https://archive.org/details/BurrowTheSanskritLanguage and also at https://www.academia.edu/38684965/The_Sanskrit_Language_Burrow. It was updated in 1973, seemingly by Burrow himself, and the 2001 Indian edition is but a reprint of it.