I wouldn't worry about getting the ratio exactly right. Because unless you know the exact moisture content of each of the ingredients, its going to be difficult to be exactly right. Composting doesn't need to be exact.

I would mix together all of your bloodmeal and all of your leaves and then monitor the pile. If its not cooking fast enough add some more greens. (You can get used coffee grounds for free from almost any coffee shop. I wouldn't recommend "buying" anything to compost, either.)

If its starts to smell add more leaves, or if you are out leaves then use shredded junk mail, which is also free.

http://www.organicgardening.com/feature/0,7518,s1-5-21-112,00.html

Hi, this site will give you a nice bit of guidance to figure out what you need. Just highlight and copy then paste in the address bar. Have fun.

Urine is also a great source of Nitrogen for composting.

I use, as a rule of thumb, 5 pounds of blood meal per 6 inch layer of shredded leaves and that has worked very well for a long time.

As another rule of thumb, don't ever buy anything to put into your compost pile. I assume you bought the blood meal and did not make your own. An excellent alternative to purchased greens is animal dung. Horse manure is especially good and usually available unless you live in Antarctica. Just to make it easy to transport, I use the following materials to collect it.

1 5-gallon bucket
Lots of 13-gallon plastic bags
1 Shovel

I line the bucket with one or two bags, fill the bag with about 3 gallons of manure, tie it closed, remove the filled bag(s) and replace with empty bag(s) in the bucket. I can carry a lot of these bags in my trunk.

But would you put it in your car? Not everyone has a truck. Nor access to manure if you live in a large city or suburb.

Karen

If he lives in an urban area and made his own bloodmeal, I don't want to hear about it.

joepye: I thought the same thing. "what happened to grandpa?"!!!

Karen

Yes I put them in my car. That's the reason for the plastic bags. That's the reason for using a 13-gallon bag in a 5-gallon bucket and only putting 3 gallons in it. Double bagging is a precaution for if you bought really cheap bags.

I forgot to mention horses in urban areas.

Many urban areas are easier to get horse manure than many rural areas. The reason is that in an urban area, all the horse owners put their horses in just a few places. These places have been horse stables for most of modern time. The reason they are still there is that as the agriculture laws have changed to push livestock out of town, the original stables have been grandfathered in. The counter to the pressure to keep them is place is the value of the land they are on going up.

In rural areas each horse owner will have his/her one horse at home, which could be miles from the next horse. Call your county sheriff and ask if they have a mounted posse or something similar. Chances are they have a stables for search and rescue animals. If that doesn't pan out call your county agriculture extension agent for a 4-H or FFA link to a nearby stables. Or check with a veterinarian who deals in large animals or has large animals.

Los Angeles (LA County) is one of the most densely populated areas with the highest population of horses I can think of. Even though the value of the land is completely ridonkulous, the race tracks can afford to keep horses around.