Trouble learning to read music

[SteveCS]

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I do have a more community suggestion, that is everyone that wishes to, they could contribute an eighth note based line for you to sight read. I don't know how many people would be willing to contribute, but I thought I'd put it out there.
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Why not:
This one has a few tricky chromatics and an interesting modulation at the end.

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...I have been mostly working out of 300 sight reading exercises for bass and have hit the wall at exercise 65, which is strings of 4-1/8 notes.
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Maybe go back to #61 and work down the page again. The only significant difference I can see between pages 30 and 31 is the introduction of the dotted crotchet - in all other respects the rhythmic figures are the very similar so all you are doing on page 65 is missing some notes out to make others longer. Assuming you've done #61 before, here I've tried to blend the notes of #61 with some of the rhythmic figures of #65 - perhaps it will help you to bridge the gap:

 

[pdbass]

Not a panacea. I glossed over a lot of stuff to get this done, but if it helps someone, great. PDFs in the description with exercises I like to use for rhythm and diatonic playing. Obvious jazz slant here, but universal concepts when it comes to music and reading.