Without knowing the specific dictionary, it's impossible to give you the exact guide words for "hemisphere." However, you can make a good guess!
* Think about the alphabet: "Hemisphere" starts with "Hem." So, the guide words on the page containing "hemisphere" would likely start with letters close to "Hem" in the alphabet.
* Think about related words: Words like "hemlock," "hen," and "herald" might appear on the same page as "hemisphere."
To find the exact guide words, you'll need to look at the dictionary itself.