The phrase "and breadth of these" is correct and usable in written English.
It can be used to refer to the extent or range of something, often in a figurative sense, such as discussing the scope of a topic or the variety of options available.
Example: "The research covered the depth and breadth of these issues, providing a comprehensive overview of the subject matter."
Alternatives: "scope of these" or "range of these".
"I've looked at all sectors and the depth, penetration and breadth of these attacks are substantial".
The depth and breadth of these applications and systems are far beyond the traditional definition of concurrent engineering.
The depth and breadth of these offerings have increased even more in the current crisis, which spans many countries and many specialties.
In a November letter asking for a public hearing on the settlement, the Independent Petroleum Association of America warned that "the pure depth and breadth of these settlement agreements could harm our membership" and slow oil and gas exploration.
One look at this remarkable roster of centers, programs, hackathons, seed funds, contests, clubs and curricula gives a vivid impression of the depth and breadth of these efforts to inspire and cultivate our home-grown entrepreneurs.
The speed and breadth of these policy reversals are generating considerable angst among voters across a wide political spectrum.
The depth and breadth of conservation of these sequences is indicative of a fundamental regulatory role.
The quantity and breadth of data through these sources is robust, but the information is not particularly timely or accurate because it is collected too infrequently and human nature is constantly changing.
The intensity and breadth of resource use that these mutations confer provides insight into the ultimate causes of selection.
In March 2012, a conference in honor of his 90th birthday was held at the Center for the Study of Language and Information, where a large number of leading workers in a variety of scientific and philosophical fields, many of them former students, contributed cutting-edge papers in which the depth and breadth of Suppes' contributions to all of these fields became fully apparent.
