The right minor (horizontal) fissure separates the right upper lobe from the right middle lobe. The left major fissure separates the left upper lobe and lower lobe. Segmental anatomy has little relevance in plain chest radiography. The position of the various lobes on the frontal CXR is illustrated below. The figures illustrate the CXR appearance of consolidation of different lobes.
The earnings vary as it depends on their position, the type of institution, teaching experience, and field of expertise. According to educhoice.org, online professors tend to make about half of what a typical faculty member makes. So the average salary one could expect from this position would be $56,210. [1] Here's the data provided by AAUP 2007-8's report: Average Salary and Percentage Increase by Rank. More info.
In 2013 male professors at Illinois Central College had an average monthly salary of $7,641. This is $254 more than male professors earned per month in 2012, the most recently reported prior year, and a 3.3 percent increase in monthly earnings over the previous year's average monthly salary ($7,387).