mos prize xword

[markh1972]

stuck on these last 3
12a freshwater lake in the sierra nevarda mountains t?h?e
24a russian physiologist pioneer in conditioning
41 dancer who claimed john the baptist head from herod s?l?m?

[Lie-in King]

12a Tahoe
24a Pavlov
41a Salome

[wyddfa]

12a Tahoe

24a Pavlov

41a Salome

[twocushions]

I have also got Tahoe for 12 across and I'm sure it is right but that makes 7d Day of the week named after Nordic god equivalent to Mars - Tuesday. That is surely wrong? Wasn't the god Thor so the answer should be Thursday which in any case doesn't fit the grid? Does anyone agree the puzzle is wrong?

[columbus]

In the Thai solar calendar, the day is named for the Pali word for the planet Mars, which also means "Ashes of the Dead"