Many of the older publications are online. The problem in using them is that if newer and different information has come out, the older information is considered obsolete and of no concern. jws are conditioned that there will be "adjustments" and "clarifications" and the example the WTS points to most is circumcision not being required any more.
I would stick to more recent changes such as the 1914 generation change and the more recent one about 1935 no longer being the cutoff date for being called to heaven as anointed.
I would avoid the trinity since that tends to just go round and round.
I like ask how jws can accept hemoglobin based products that are made out of stored expired blood.
Blondie
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g8/06p.11TheRealValueofBlood***What
AreHemoglobin-BasedOxygenCarriers?Within each red blood cell are some 300 million hemoglobin molecules. Hemoglobin represents about one third of the volume of a mature red cell. Each molecule contains the protein globin and a pigment called heme—which includes an iron atom. When a red blood cell passes through the lungs, oxygen molecules penetrate the cell and attach themselves to hemoglobin molecules. Seconds later, the oxygen is discharged into body tissue, sustaining the life of the cells.
Some manufacturers now process hemoglobin, releasing it from human or bovine red blood cells. The extracted hemoglobin is then filtered to remove impurities, chemically modified and purified, mixed with a solution, and packaged. The end product—not yet approved for use in most lands—is called a hemoglobin-based oxygen carrier, or HBOC. Since the heme is responsible for the rich red color of blood, a unit of HBOC looks just like a unit of red blood cells, the primary component from which it is taken.
Unlike red blood cells, which must be refrigerated and discarded after a few weeks, the HBOC can be stored at room temperature and used months later. And since the cell membrane with its unique antigens is gone, severe reactions due to mismatched blood types pose no threat. However, compared with other blood fractions, the HBOC presents more challenges to conscientious Christians, who seek to obey God’s law on blood. Why? As long as the HBOC is derived from blood, there are two objections that may be raised. One, the HBOC carries out the key function of a primary component of blood, the red cells. Two, hemoglobin, from which the HBOC is derived, makes up a significant portion of that component. Regarding this and similar products, then, Christians face a very serious decision. They must carefully and prayerfully meditate on Bible principles concerning the sacredness of blood. With a keen desire to maintain a good relationship with Jehovah, each must be guided by his Bible-trained conscience.—Galatians 6:5.
