Find-Replace with discontinous ranges

I am editing a Google Sheet with multiple peers. I need to do a Find-Replace on just my rows, say, rows 1:38 and 197:222. (Not permitted to sort the data.) I see many examples on the web of doing this over multiple sheets, ex:

 Sheet1!K37:K68;Sheet2!K37:K68

I figured for my data the following would work:

 Sheet1!K37:K38;Sheet1!K197:K208

No, "Invalid Range". Next tried:

 Sheet1!K37:K38;K197:K208

No joy again. I went back to the web and did Google searches and SE searches but could not find an example that matches my requirements. This should be really easy. What am I missing?