Historical Examples. 1  The principal use of pyrite is in the manufacture of sulphuric acid. 2  Wherever flint and pyrite are to be had these are used for striking fire. 3  He, however, puts it on one side as merely a synonym for pyrite, nor can it be satisfactorily defined in much better terms.
Usually somewhere between 5 and 6 months would be the time when a male cat begins to reach sexual maturity and starts to spray. Although not all cats will do this, it is highly likely in unneutered males, especially if there are other cats in the house. That is why it is recommended to get them neutered before 6 months of age. Once a male cat begins to spray, neutering will help but it may continue to some extent if it has become a habit.
Watch the kittens for signs of sexual maturity. A kitten reaches puberty at around 6 months of age. 1  Your vet give you a better idea of your little ones' ages, along with recommendations for their care.  Kittens less than 4 weeks old need to be bottle fed and manually stimulated to go to the bathroom.