how do i add a missing verdana font

Paul Uhl wrote:

I have all 4 versions of Verdana in /Library/Fonts but there are not available in any application.

Verdana shows in my apps. Does it show in Font Book? If not, try "Restore Standard Fonts…" from Font Book's File menu.

I have all 4 versions of Verdana in /Library/Fonts but there are not available in any application.

Verdana does appears in Font Book, but isn't available in any of my applications—such as Mail, TextEdit, etc.

I don't know the answer. It appears for me. Hopefully someone will have an idea.

Seems we have Verdana in 2 locations:

/Library/Fonts

/Library/Fonts/Microsoft

Microsoft Office 2008 or 2004 would have installed the conflicting version. You'll notice the one in the /Library/Fonts/Microsoft/ folder has no extension (assuming it was indeed put there by Office 2004/2008). If this is correct, it's an old Mac legacy style TrueType font, which contains all four typefaces in one suitcase file. Delete it. Only the newer .ttf versions should remain in the /Library/Fonts/ folder.

Managing fonts with Font Book

It is recommended you use Font Book (included with Mac OS X v10.3 and later) to install, remove, view, organize, validate, enable, and disable fonts. See Mac 101: Font Book for detailed information.

If you wish to manually manage fonts instead, see the next section.

Manually managing fonts

Note: Mac OS X has four or more Fonts folders, depending on software installation and number of users. This article differentiates them by pathname. To learn more about pathnames, please see: this article.
You may install fonts by double-clicking them and following the on screen prompts in the Font Book application, or by manually copying or dragging font files to any of the standard Fonts folders in Mac OS X.

The folder in which a font is located determines who can access and use the font. For example: If a user manually installs a new font at ~/Library/Fonts/, the font is available only to that user. If a root or admin user installs the same font at /Network/Library/Fonts/, all network users can use the fonts (assuming that the network administrator has set up computers for this type of sharing).
Changes to fonts take effect when an application is opened or a user logs in to the account or computer on which the changes occurred. Duplicate fonts are resolved based on the order of precedence defined for the standard Fonts folders and are described from highest to lowest priority below.

Please let us know if this helps.
Have a great day!

Are they actually missing from the drive, or just not appearing in your apps?

Open the root Library folder, which next to Applications, Users, etc. Within that, open the Fonts folder. These Verdana fonts should be there.

Verdana Bold Italic.ttf

Verdana Bold.ttf

Verdana Italic.ttf

Verdana.ttf

Kurt is correct. They should be installed in /Library/Fonts