Sefer Ezer L'shulchan - Hilchos Niddah - Vol. 1 - Siman 183-189

Includes:

1. Summary of the sugyos from the Gemara and Rishonim until the Shulchan Aruch and Nosei Keilim, with he'aros of the Acharonim
2. Questions and answers for use in reviewing the Shulchan Aruch and Nosei Keilim
3. Shiurei halachah from Harav Shmuel Felder shlit"a regarding common questions in hilchos niddah
4. Index for she'eilos u'teshuvos and sifrei Acharonim, organized according to the order of the Shulchan Aruch and Nosei Keilim