The journal entries for Bella's investment in Buffalo, Inc. for 2024 are:
January 1, 2024:
- Debit: Investment in Buffalo, Inc. bond \( = 56200 \)
- Credit: Cash \( = 56200 \)
December 31, 2024:
- Debit: Unrealized Loss on Investment \( = 4800 \)
- Credit: Investment in Buffalo, Inc. bond \( = 4800 \)
Thus, the final answer is:
\[
\boxed{\text{Journal entries recorded successfully}}
\]