Preheat oven to 350 degrees F (175 degrees C).

 Grease and flour round cake pan.

 Slice apples.

 In a large bowl, cream together eggs and sugar till light and

 fluffy.

 Add flour and baking soda.

 Fold into batter, being careful not to over-mix.

 Put sliced apples on the bottom of the pan and pour the batter.

 Bake in preheated oven for 30 minutes, or until a knife inserted  into the center comes out clean.